Home / 13,084.65-18,056.84-7,116.36

Finding the Fourth Proportional to 13,084.65, 18,056.84 and 7,116.36

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Solution

The fourth proportional to 13,084.65, 18,056.84 and 7,116.36 is: 9,820.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.65 : 18,056.84 = 7,116.36 : x
  2. Step 2: Convert to fraction form
    13,084.65/18,056.84 = 7,116.36/x
  3. Step 3: Cross multiply
    13,084.65x = 18,056.84 × 7,116.36
  4. Step 4: Simplify right side
    13,084.65x = 128,498,938.32
  5. Step 5: Solve for x
    x = 128,498,938.32/13,084.65
  6. Step 6: Final answer
    x = 9,820.59

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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.