Home / 11,188.71-15,439.55-6,472.08

Finding the Fourth Proportional to 11,188.71, 15,439.55 and 6,472.08

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Solution

The fourth proportional to 11,188.71, 15,439.55 and 6,472.08 is: 8,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.71 : 15,439.55 = 6,472.08 : x
  2. Step 2: Convert to fraction form
    11,188.71/15,439.55 = 6,472.08/x
  3. Step 3: Cross multiply
    11,188.71x = 15,439.55 × 6,472.08
  4. Step 4: Simplify right side
    11,188.71x = 99,925,970.40
  5. Step 5: Solve for x
    x = 99,925,970.40/11,188.71
  6. Step 6: Final answer
    x = 8,930.96

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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.