Home / 9,123.13-13,688.81-5,227.53

Finding the Fourth Proportional to 9,123.13, 13,688.81 and 5,227.53

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Solution

The fourth proportional to 9,123.13, 13,688.81 and 5,227.53 is: 7,843.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.13 : 13,688.81 = 5,227.53 : x
  2. Step 2: Convert to fraction form
    9,123.13/13,688.81 = 5,227.53/x
  3. Step 3: Cross multiply
    9,123.13x = 13,688.81 × 5,227.53
  4. Step 4: Simplify right side
    9,123.13x = 71,558,638.80
  5. Step 5: Solve for x
    x = 71,558,638.80/9,123.13
  6. Step 6: Final answer
    x = 7,843.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.