Home / 18,423.67-25,428.76-11,707.98

Finding the Fourth Proportional to 18,423.67, 25,428.76 and 11,707.98

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Solution

The fourth proportional to 18,423.67, 25,428.76 and 11,707.98 is: 16,159.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.67 : 25,428.76 = 11,707.98 : x
  2. Step 2: Convert to fraction form
    18,423.67/25,428.76 = 11,707.98/x
  3. Step 3: Cross multiply
    18,423.67x = 25,428.76 × 11,707.98
  4. Step 4: Simplify right side
    18,423.67x = 297,719,569.29
  5. Step 5: Solve for x
    x = 297,719,569.29/18,423.67
  6. Step 6: Final answer
    x = 16,159.62

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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.