Home / 15,145.02-22,720.42-5,287.12

Finding the Fourth Proportional to 15,145.02, 22,720.42 and 5,287.12

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Solution

The fourth proportional to 15,145.02, 22,720.42 and 5,287.12 is: 7,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.02 : 22,720.42 = 5,287.12 : x
  2. Step 2: Convert to fraction form
    15,145.02/22,720.42 = 5,287.12/x
  3. Step 3: Cross multiply
    15,145.02x = 22,720.42 × 5,287.12
  4. Step 4: Simplify right side
    15,145.02x = 120,125,586.99
  5. Step 5: Solve for x
    x = 120,125,586.99/15,145.02
  6. Step 6: Final answer
    x = 7,931.69

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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.