Home / 16,472.21-22,715.41-11,988.18

Finding the Fourth Proportional to 16,472.21, 22,715.41 and 11,988.18

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Solution

The fourth proportional to 16,472.21, 22,715.41 and 11,988.18 is: 16,531.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,472.21 : 22,715.41 = 11,988.18 : x
  2. Step 2: Convert to fraction form
    16,472.21/22,715.41 = 11,988.18/x
  3. Step 3: Cross multiply
    16,472.21x = 22,715.41 × 11,988.18
  4. Step 4: Simplify right side
    16,472.21x = 272,316,386.19
  5. Step 5: Solve for x
    x = 272,316,386.19/16,472.21
  6. Step 6: Final answer
    x = 16,531.87

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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.