Home / 11,187.76-15,439.17-6,152.31

Finding the Fourth Proportional to 11,187.76, 15,439.17 and 6,152.31

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Solution

The fourth proportional to 11,187.76, 15,439.17 and 6,152.31 is: 8,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.76 : 15,439.17 = 6,152.31 : x
  2. Step 2: Convert to fraction form
    11,187.76/15,439.17 = 6,152.31/x
  3. Step 3: Cross multiply
    11,187.76x = 15,439.17 × 6,152.31
  4. Step 4: Simplify right side
    11,187.76x = 94,986,559.98
  5. Step 5: Solve for x
    x = 94,986,559.98/11,187.76
  6. Step 6: Final answer
    x = 8,490.22

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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.