Home / 8,701.20-12,009.60-5,344.08

Finding the Fourth Proportional to 8,701.20, 12,009.60 and 5,344.08

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Solution

The fourth proportional to 8,701.20, 12,009.60 and 5,344.08 is: 7,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.20 : 12,009.60 = 5,344.08 : x
  2. Step 2: Convert to fraction form
    8,701.20/12,009.60 = 5,344.08/x
  3. Step 3: Cross multiply
    8,701.20x = 12,009.60 × 5,344.08
  4. Step 4: Simplify right side
    8,701.20x = 64,180,263.17
  5. Step 5: Solve for x
    x = 64,180,263.17/8,701.20
  6. Step 6: Final answer
    x = 7,376.02

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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.