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Finding the Fourth Proportional to 14,861, 20,513.04 and 10,681.40

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Solution

The fourth proportional to 14,861, 20,513.04 and 10,681.40 is: 14,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861 : 20,513.04 = 10,681.40 : x
  2. Step 2: Convert to fraction form
    14,861/20,513.04 = 10,681.40/x
  3. Step 3: Cross multiply
    14,861x = 20,513.04 × 10,681.40
  4. Step 4: Simplify right side
    14,861x = 219,107,985.46
  5. Step 5: Solve for x
    x = 219,107,985.46/14,861
  6. Step 6: Final answer
    x = 14,743.83

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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.