Home / 8,445.02-11,643.18-5,787.68

Finding the Fourth Proportional to 8,445.02, 11,643.18 and 5,787.68

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Solution

The fourth proportional to 8,445.02, 11,643.18 and 5,787.68 is: 7,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.02 : 11,643.18 = 5,787.68 : x
  2. Step 2: Convert to fraction form
    8,445.02/11,643.18 = 5,787.68/x
  3. Step 3: Cross multiply
    8,445.02x = 11,643.18 × 5,787.68
  4. Step 4: Simplify right side
    8,445.02x = 67,387,000.02
  5. Step 5: Solve for x
    x = 67,387,000.02/8,445.02
  6. Step 6: Final answer
    x = 7,979.50

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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.