Home / 12,440.81-18,661.19-10,244.91

Finding the Fourth Proportional to 12,440.81, 18,661.19 and 10,244.91

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Solution

The fourth proportional to 12,440.81, 18,661.19 and 10,244.91 is: 15,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.81 : 18,661.19 = 10,244.91 : x
  2. Step 2: Convert to fraction form
    12,440.81/18,661.19 = 10,244.91/x
  3. Step 3: Cross multiply
    12,440.81x = 18,661.19 × 10,244.91
  4. Step 4: Simplify right side
    12,440.81x = 191,182,230.80
  5. Step 5: Solve for x
    x = 191,182,230.80/12,440.81
  6. Step 6: Final answer
    x = 15,367.35

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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.