Home / 11,337.13-15,645.30-6,620.50

Finding the Fourth Proportional to 11,337.13, 15,645.30 and 6,620.50

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Solution

The fourth proportional to 11,337.13, 15,645.30 and 6,620.50 is: 9,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.13 : 15,645.30 = 6,620.50 : x
  2. Step 2: Convert to fraction form
    11,337.13/15,645.30 = 6,620.50/x
  3. Step 3: Cross multiply
    11,337.13x = 15,645.30 × 6,620.50
  4. Step 4: Simplify right side
    11,337.13x = 103,579,630.42
  5. Step 5: Solve for x
    x = 103,579,630.42/11,337.13
  6. Step 6: Final answer
    x = 9,136.32

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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.