Home / 6,445.60-9,660.30-4,712.20

Finding the Fourth Proportional to 6,445.60, 9,660.30 and 4,712.20

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Solution

The fourth proportional to 6,445.60, 9,660.30 and 4,712.20 is: 7,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.60 : 9,660.30 = 4,712.20 : x
  2. Step 2: Convert to fraction form
    6,445.60/9,660.30 = 4,712.20/x
  3. Step 3: Cross multiply
    6,445.60x = 9,660.30 × 4,712.20
  4. Step 4: Simplify right side
    6,445.60x = 45,521,265.66
  5. Step 5: Solve for x
    x = 45,521,265.66/6,445.60
  6. Step 6: Final answer
    x = 7,062.38

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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.