Home / 16,870.24-25,280.74-11,937.20

Finding the Fourth Proportional to 16,870.24, 25,280.74 and 11,937.20

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Solution

The fourth proportional to 16,870.24, 25,280.74 and 11,937.20 is: 17,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.24 : 25,280.74 = 11,937.20 : x
  2. Step 2: Convert to fraction form
    16,870.24/25,280.74 = 11,937.20/x
  3. Step 3: Cross multiply
    16,870.24x = 25,280.74 × 11,937.20
  4. Step 4: Simplify right side
    16,870.24x = 301,781,249.53
  5. Step 5: Solve for x
    x = 301,781,249.53/16,870.24
  6. Step 6: Final answer
    x = 17,888.38

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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.