Home / 10,938.24-15,115.21-8,948.07

Finding the Fourth Proportional to 10,938.24, 15,115.21 and 8,948.07

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Solution

The fourth proportional to 10,938.24, 15,115.21 and 8,948.07 is: 12,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.24 : 15,115.21 = 8,948.07 : x
  2. Step 2: Convert to fraction form
    10,938.24/15,115.21 = 8,948.07/x
  3. Step 3: Cross multiply
    10,938.24x = 15,115.21 × 8,948.07
  4. Step 4: Simplify right side
    10,938.24x = 135,251,934.77
  5. Step 5: Solve for x
    x = 135,251,934.77/10,938.24
  6. Step 6: Final answer
    x = 12,365.05

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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.