Home / 13,146.04-18,141.56-7,480.64

Finding the Fourth Proportional to 13,146.04, 18,141.56 and 7,480.64

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Solution

The fourth proportional to 13,146.04, 18,141.56 and 7,480.64 is: 10,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.04 : 18,141.56 = 7,480.64 : x
  2. Step 2: Convert to fraction form
    13,146.04/18,141.56 = 7,480.64/x
  3. Step 3: Cross multiply
    13,146.04x = 18,141.56 × 7,480.64
  4. Step 4: Simplify right side
    13,146.04x = 135,710,479.40
  5. Step 5: Solve for x
    x = 135,710,479.40/13,146.04
  6. Step 6: Final answer
    x = 10,323.30

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Double scale
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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.