Home / 7,985.28-11,938.50-6,766.32

Finding the Fourth Proportional to 7,985.28, 11,938.50 and 6,766.32

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Solution

The fourth proportional to 7,985.28, 11,938.50 and 6,766.32 is: 10,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.28 : 11,938.50 = 6,766.32 : x
  2. Step 2: Convert to fraction form
    7,985.28/11,938.50 = 6,766.32/x
  3. Step 3: Cross multiply
    7,985.28x = 11,938.50 × 6,766.32
  4. Step 4: Simplify right side
    7,985.28x = 80,779,711.32
  5. Step 5: Solve for x
    x = 80,779,711.32/7,985.28
  6. Step 6: Final answer
    x = 10,116.08

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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.