Home / 13,116.34-18,086.70-9,753.76

Finding the Fourth Proportional to 13,116.34, 18,086.70 and 9,753.76

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Solution

The fourth proportional to 13,116.34, 18,086.70 and 9,753.76 is: 13,449.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.34 : 18,086.70 = 9,753.76 : x
  2. Step 2: Convert to fraction form
    13,116.34/18,086.70 = 9,753.76/x
  3. Step 3: Cross multiply
    13,116.34x = 18,086.70 × 9,753.76
  4. Step 4: Simplify right side
    13,116.34x = 176,413,330.99
  5. Step 5: Solve for x
    x = 176,413,330.99/13,116.34
  6. Step 6: Final answer
    x = 13,449.89

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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.