Home / 18,490.60-25,515.78-10,106.92

Finding the Fourth Proportional to 18,490.60, 25,515.78 and 10,106.92

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Solution

The fourth proportional to 18,490.60, 25,515.78 and 10,106.92 is: 13,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.60 : 25,515.78 = 10,106.92 : x
  2. Step 2: Convert to fraction form
    18,490.60/25,515.78 = 10,106.92/x
  3. Step 3: Cross multiply
    18,490.60x = 25,515.78 × 10,106.92
  4. Step 4: Simplify right side
    18,490.60x = 257,885,947.20
  5. Step 5: Solve for x
    x = 257,885,947.20/18,490.60
  6. Step 6: Final answer
    x = 13,946.87

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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.