Home / 8,860.16-13,290.24-3,670.40

Finding the Fourth Proportional to 8,860.16, 13,290.24 and 3,670.40

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Solution

The fourth proportional to 8,860.16, 13,290.24 and 3,670.40 is: 5,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.16 : 13,290.24 = 3,670.40 : x
  2. Step 2: Convert to fraction form
    8,860.16/13,290.24 = 3,670.40/x
  3. Step 3: Cross multiply
    8,860.16x = 13,290.24 × 3,670.40
  4. Step 4: Simplify right side
    8,860.16x = 48,780,496.90
  5. Step 5: Solve for x
    x = 48,780,496.90/8,860.16
  6. Step 6: Final answer
    x = 5,505.60

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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.