Home / 8,158.74-11,258.85-4,621.86

Finding the Fourth Proportional to 8,158.74, 11,258.85 and 4,621.86

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Solution

The fourth proportional to 8,158.74, 11,258.85 and 4,621.86 is: 6,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.74 : 11,258.85 = 4,621.86 : x
  2. Step 2: Convert to fraction form
    8,158.74/11,258.85 = 4,621.86/x
  3. Step 3: Cross multiply
    8,158.74x = 11,258.85 × 4,621.86
  4. Step 4: Simplify right side
    8,158.74x = 52,036,828.46
  5. Step 5: Solve for x
    x = 52,036,828.46/8,158.74
  6. Step 6: Final answer
    x = 6,378.05

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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.