Home / 18,058.12-24,939.72-12,407.80

Finding the Fourth Proportional to 18,058.12, 24,939.72 and 12,407.80

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Solution

The fourth proportional to 18,058.12, 24,939.72 and 12,407.80 is: 17,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.12 : 24,939.72 = 12,407.80 : x
  2. Step 2: Convert to fraction form
    18,058.12/24,939.72 = 12,407.80/x
  3. Step 3: Cross multiply
    18,058.12x = 24,939.72 × 12,407.80
  4. Step 4: Simplify right side
    18,058.12x = 309,447,057.82
  5. Step 5: Solve for x
    x = 309,447,057.82/18,058.12
  6. Step 6: Final answer
    x = 17,136.17

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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.