Home / 8,695.20-12,987.60-7,466.16

Finding the Fourth Proportional to 8,695.20, 12,987.60 and 7,466.16

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Solution

The fourth proportional to 8,695.20, 12,987.60 and 7,466.16 is: 11,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.20 : 12,987.60 = 7,466.16 : x
  2. Step 2: Convert to fraction form
    8,695.20/12,987.60 = 7,466.16/x
  3. Step 3: Cross multiply
    8,695.20x = 12,987.60 × 7,466.16
  4. Step 4: Simplify right side
    8,695.20x = 96,967,499.62
  5. Step 5: Solve for x
    x = 96,967,499.62/8,695.20
  6. Step 6: Final answer
    x = 11,151.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.