Home / 7,477.68-10,312.20-5,909.52

Finding the Fourth Proportional to 7,477.68, 10,312.20 and 5,909.52

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Solution

The fourth proportional to 7,477.68, 10,312.20 and 5,909.52 is: 8,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.68 : 10,312.20 = 5,909.52 : x
  2. Step 2: Convert to fraction form
    7,477.68/10,312.20 = 5,909.52/x
  3. Step 3: Cross multiply
    7,477.68x = 10,312.20 × 5,909.52
  4. Step 4: Simplify right side
    7,477.68x = 60,940,152.14
  5. Step 5: Solve for x
    x = 60,940,152.14/7,477.68
  6. Step 6: Final answer
    x = 8,149.61

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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.