Home / 14,635.29-20,182.99-9,715.21

Finding the Fourth Proportional to 14,635.29, 20,182.99 and 9,715.21

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Solution

The fourth proportional to 14,635.29, 20,182.99 and 9,715.21 is: 13,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,635.29 : 20,182.99 = 9,715.21 : x
  2. Step 2: Convert to fraction form
    14,635.29/20,182.99 = 9,715.21/x
  3. Step 3: Cross multiply
    14,635.29x = 20,182.99 × 9,715.21
  4. Step 4: Simplify right side
    14,635.29x = 196,081,954.98
  5. Step 5: Solve for x
    x = 196,081,954.98/14,635.29
  6. Step 6: Final answer
    x = 13,397.89

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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.