Home / 9,520.08-13,136.40-6,377.28

Finding the Fourth Proportional to 9,520.08, 13,136.40 and 6,377.28

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Solution

The fourth proportional to 9,520.08, 13,136.40 and 6,377.28 is: 8,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.08 : 13,136.40 = 6,377.28 : x
  2. Step 2: Convert to fraction form
    9,520.08/13,136.40 = 6,377.28/x
  3. Step 3: Cross multiply
    9,520.08x = 13,136.40 × 6,377.28
  4. Step 4: Simplify right side
    9,520.08x = 83,774,500.99
  5. Step 5: Solve for x
    x = 83,774,500.99/9,520.08
  6. Step 6: Final answer
    x = 8,799.77

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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.