Home / 18,551.04-25,586.88-13,516.80

Finding the Fourth Proportional to 18,551.04, 25,586.88 and 13,516.80

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Solution

The fourth proportional to 18,551.04, 25,586.88 and 13,516.80 is: 18,643.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.04 : 25,586.88 = 13,516.80 : x
  2. Step 2: Convert to fraction form
    18,551.04/25,586.88 = 13,516.80/x
  3. Step 3: Cross multiply
    18,551.04x = 25,586.88 × 13,516.80
  4. Step 4: Simplify right side
    18,551.04x = 345,852,739.58
  5. Step 5: Solve for x
    x = 345,852,739.58/18,551.04
  6. Step 6: Final answer
    x = 18,643.31

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.