Home / 15,386.59-23,123.16-9,147.71

Finding the Fourth Proportional to 15,386.59, 23,123.16 and 9,147.71

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Solution

The fourth proportional to 15,386.59, 23,123.16 and 9,147.71 is: 13,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.59 : 23,123.16 = 9,147.71 : x
  2. Step 2: Convert to fraction form
    15,386.59/23,123.16 = 9,147.71/x
  3. Step 3: Cross multiply
    15,386.59x = 23,123.16 × 9,147.71
  4. Step 4: Simplify right side
    15,386.59x = 211,524,019.77
  5. Step 5: Solve for x
    x = 211,524,019.77/15,386.59
  6. Step 6: Final answer
    x = 13,747.30

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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.