Home / 10,147.38-15,226.54-7,681.62

Finding the Fourth Proportional to 10,147.38, 15,226.54 and 7,681.62

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Solution

The fourth proportional to 10,147.38, 15,226.54 and 7,681.62 is: 11,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.38 : 15,226.54 = 7,681.62 : x
  2. Step 2: Convert to fraction form
    10,147.38/15,226.54 = 7,681.62/x
  3. Step 3: Cross multiply
    10,147.38x = 15,226.54 × 7,681.62
  4. Step 4: Simplify right side
    10,147.38x = 116,964,494.19
  5. Step 5: Solve for x
    x = 116,964,494.19/10,147.38
  6. Step 6: Final answer
    x = 11,526.57

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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.