Home / 10,209.02-15,312.45-5,265.86

Finding the Fourth Proportional to 10,209.02, 15,312.45 and 5,265.86

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Solution

The fourth proportional to 10,209.02, 15,312.45 and 5,265.86 is: 7,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.02 : 15,312.45 = 5,265.86 : x
  2. Step 2: Convert to fraction form
    10,209.02/15,312.45 = 5,265.86/x
  3. Step 3: Cross multiply
    10,209.02x = 15,312.45 × 5,265.86
  4. Step 4: Simplify right side
    10,209.02x = 80,633,217.96
  5. Step 5: Solve for x
    x = 80,633,217.96/10,209.02
  6. Step 6: Final answer
    x = 7,898.23

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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.