Home / 18,130.80-25,014.50-10,962.91

Finding the Fourth Proportional to 18,130.80, 25,014.50 and 10,962.91

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Solution

The fourth proportional to 18,130.80, 25,014.50 and 10,962.91 is: 15,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.80 : 25,014.50 = 10,962.91 : x
  2. Step 2: Convert to fraction form
    18,130.80/25,014.50 = 10,962.91/x
  3. Step 3: Cross multiply
    18,130.80x = 25,014.50 × 10,962.91
  4. Step 4: Simplify right side
    18,130.80x = 274,231,593.40
  5. Step 5: Solve for x
    x = 274,231,593.40/18,130.80
  6. Step 6: Final answer
    x = 15,125.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.