Home / 11,187.32-15,438.85-6,152.00

Finding the Fourth Proportional to 11,187.32, 15,438.85 and 6,152.00

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Solution

The fourth proportional to 11,187.32, 15,438.85 and 6,152.00 is: 8,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.32 : 15,438.85 = 6,152.00 : x
  2. Step 2: Convert to fraction form
    11,187.32/15,438.85 = 6,152.00/x
  3. Step 3: Cross multiply
    11,187.32x = 15,438.85 × 6,152.00
  4. Step 4: Simplify right side
    11,187.32x = 94,979,834.07
  5. Step 5: Solve for x
    x = 94,979,834.07/11,187.32
  6. Step 6: Final answer
    x = 8,489.96

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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.