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Finding the Fourth Proportional to 8,959.52, 13,440.40 and 2,385.84

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Solution

The fourth proportional to 8,959.52, 13,440.40 and 2,385.84 is: 3,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.52 : 13,440.40 = 2,385.84 : x
  2. Step 2: Convert to fraction form
    8,959.52/13,440.40 = 2,385.84/x
  3. Step 3: Cross multiply
    8,959.52x = 13,440.40 × 2,385.84
  4. Step 4: Simplify right side
    8,959.52x = 32,066,643.94
  5. Step 5: Solve for x
    x = 32,066,643.94/8,959.52
  6. Step 6: Final answer
    x = 3,579.06

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1.5x scale

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.