Home / 8,158.59-11,258.89-4,621.80

Finding the Fourth Proportional to 8,158.59, 11,258.89 and 4,621.80

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Solution

The fourth proportional to 8,158.59, 11,258.89 and 4,621.80 is: 6,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.59 : 11,258.89 = 4,621.80 : x
  2. Step 2: Convert to fraction form
    8,158.59/11,258.89 = 4,621.80/x
  3. Step 3: Cross multiply
    8,158.59x = 11,258.89 × 4,621.80
  4. Step 4: Simplify right side
    8,158.59x = 52,036,337.80
  5. Step 5: Solve for x
    x = 52,036,337.80/8,158.59
  6. Step 6: Final answer
    x = 6,378.10

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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.