Home / 10,385.64-15,585.66-4,145.04

Finding the Fourth Proportional to 10,385.64, 15,585.66 and 4,145.04

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Solution

The fourth proportional to 10,385.64, 15,585.66 and 4,145.04 is: 6,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.64 : 15,585.66 = 4,145.04 : x
  2. Step 2: Convert to fraction form
    10,385.64/15,585.66 = 4,145.04/x
  3. Step 3: Cross multiply
    10,385.64x = 15,585.66 × 4,145.04
  4. Step 4: Simplify right side
    10,385.64x = 64,603,184.13
  5. Step 5: Solve for x
    x = 64,603,184.13/10,385.64
  6. Step 6: Final answer
    x = 6,220.43

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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.