Home / 8,905.60-12,289.55-4,926.88

Finding the Fourth Proportional to 8,905.60, 12,289.55 and 4,926.88

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Solution

The fourth proportional to 8,905.60, 12,289.55 and 4,926.88 is: 6,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.60 : 12,289.55 = 4,926.88 : x
  2. Step 2: Convert to fraction form
    8,905.60/12,289.55 = 4,926.88/x
  3. Step 3: Cross multiply
    8,905.60x = 12,289.55 × 4,926.88
  4. Step 4: Simplify right side
    8,905.60x = 60,549,138.10
  5. Step 5: Solve for x
    x = 60,549,138.10/8,905.60
  6. Step 6: Final answer
    x = 6,799.00

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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.