Home / 8,799.32-12,142.76-5,260.70

Finding the Fourth Proportional to 8,799.32, 12,142.76 and 5,260.70

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Solution

The fourth proportional to 8,799.32, 12,142.76 and 5,260.70 is: 7,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.32 : 12,142.76 = 5,260.70 : x
  2. Step 2: Convert to fraction form
    8,799.32/12,142.76 = 5,260.70/x
  3. Step 3: Cross multiply
    8,799.32x = 12,142.76 × 5,260.70
  4. Step 4: Simplify right side
    8,799.32x = 63,879,417.53
  5. Step 5: Solve for x
    x = 63,879,417.53/8,799.32
  6. Step 6: Final answer
    x = 7,259.59

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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.