Home / 10,077.40-15,115.29-3,502.63

Finding the Fourth Proportional to 10,077.40, 15,115.29 and 3,502.63

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Solution

The fourth proportional to 10,077.40, 15,115.29 and 3,502.63 is: 5,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,077.40 : 15,115.29 = 3,502.63 : x
  2. Step 2: Convert to fraction form
    10,077.40/15,115.29 = 3,502.63/x
  3. Step 3: Cross multiply
    10,077.40x = 15,115.29 × 3,502.63
  4. Step 4: Simplify right side
    10,077.40x = 52,943,268.21
  5. Step 5: Solve for x
    x = 52,943,268.21/10,077.40
  6. Step 6: Final answer
    x = 5,253.66

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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.