Home / 8,660.08-12,973.80-4,272.40

Finding the Fourth Proportional to 8,660.08, 12,973.80 and 4,272.40

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Solution

The fourth proportional to 8,660.08, 12,973.80 and 4,272.40 is: 6,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.08 : 12,973.80 = 4,272.40 : x
  2. Step 2: Convert to fraction form
    8,660.08/12,973.80 = 4,272.40/x
  3. Step 3: Cross multiply
    8,660.08x = 12,973.80 × 4,272.40
  4. Step 4: Simplify right side
    8,660.08x = 55,429,263.12
  5. Step 5: Solve for x
    x = 55,429,263.12/8,660.08
  6. Step 6: Final answer
    x = 6,400.55

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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.