Home / 19,918.17-27,487.88-10,966.50

Finding the Fourth Proportional to 19,918.17, 27,487.88 and 10,966.50

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Solution

The fourth proportional to 19,918.17, 27,487.88 and 10,966.50 is: 15,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.17 : 27,487.88 = 10,966.50 : x
  2. Step 2: Convert to fraction form
    19,918.17/27,487.88 = 10,966.50/x
  3. Step 3: Cross multiply
    19,918.17x = 27,487.88 × 10,966.50
  4. Step 4: Simplify right side
    19,918.17x = 301,445,781.19
  5. Step 5: Solve for x
    x = 301,445,781.19/19,918.17
  6. Step 6: Final answer
    x = 15,134.21

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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.