Home / 15,157.62-22,764.66-12,390.18

Finding the Fourth Proportional to 15,157.62, 22,764.66 and 12,390.18

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Solution

The fourth proportional to 15,157.62, 22,764.66 and 12,390.18 is: 18,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.62 : 22,764.66 = 12,390.18 : x
  2. Step 2: Convert to fraction form
    15,157.62/22,764.66 = 12,390.18/x
  3. Step 3: Cross multiply
    15,157.62x = 22,764.66 × 12,390.18
  4. Step 4: Simplify right side
    15,157.62x = 282,058,235.04
  5. Step 5: Solve for x
    x = 282,058,235.04/15,157.62
  6. Step 6: Final answer
    x = 18,608.35

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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.