Home / 18,981.42-26,193.21-11,430.19

Finding the Fourth Proportional to 18,981.42, 26,193.21 and 11,430.19

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Solution

The fourth proportional to 18,981.42, 26,193.21 and 11,430.19 is: 15,772.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.42 : 26,193.21 = 11,430.19 : x
  2. Step 2: Convert to fraction form
    18,981.42/26,193.21 = 11,430.19/x
  3. Step 3: Cross multiply
    18,981.42x = 26,193.21 × 11,430.19
  4. Step 4: Simplify right side
    18,981.42x = 299,393,356.89
  5. Step 5: Solve for x
    x = 299,393,356.89/18,981.42
  6. Step 6: Final answer
    x = 15,772.97

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Double scale
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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.