Home / 16,862.40-25,315.20-8,971.20

Finding the Fourth Proportional to 16,862.40, 25,315.20 and 8,971.20

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Solution

The fourth proportional to 16,862.40, 25,315.20 and 8,971.20 is: 13,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.40 : 25,315.20 = 8,971.20 : x
  2. Step 2: Convert to fraction form
    16,862.40/25,315.20 = 8,971.20/x
  3. Step 3: Cross multiply
    16,862.40x = 25,315.20 × 8,971.20
  4. Step 4: Simplify right side
    16,862.40x = 227,107,722.24
  5. Step 5: Solve for x
    x = 227,107,722.24/16,862.40
  6. Step 6: Final answer
    x = 13,468.29

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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.