Home / 10,515.18-15,772.77-4,274.04

Finding the Fourth Proportional to 10,515.18, 15,772.77 and 4,274.04

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Solution

The fourth proportional to 10,515.18, 15,772.77 and 4,274.04 is: 6,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.18 : 15,772.77 = 4,274.04 : x
  2. Step 2: Convert to fraction form
    10,515.18/15,772.77 = 4,274.04/x
  3. Step 3: Cross multiply
    10,515.18x = 15,772.77 × 4,274.04
  4. Step 4: Simplify right side
    10,515.18x = 67,413,449.89
  5. Step 5: Solve for x
    x = 67,413,449.89/10,515.18
  6. Step 6: Final answer
    x = 6,411.06

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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.