Home / 18,520.40-25,558.80-10,562.56

Finding the Fourth Proportional to 18,520.40, 25,558.80 and 10,562.56

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Solution

The fourth proportional to 18,520.40, 25,558.80 and 10,562.56 is: 14,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.40 : 25,558.80 = 10,562.56 : x
  2. Step 2: Convert to fraction form
    18,520.40/25,558.80 = 10,562.56/x
  3. Step 3: Cross multiply
    18,520.40x = 25,558.80 × 10,562.56
  4. Step 4: Simplify right side
    18,520.40x = 269,966,358.53
  5. Step 5: Solve for x
    x = 269,966,358.53/18,520.40
  6. Step 6: Final answer
    x = 14,576.70

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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.