Home / 10,535.16-15,810.26-4,989.74

Finding the Fourth Proportional to 10,535.16, 15,810.26 and 4,989.74

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Solution

The fourth proportional to 10,535.16, 15,810.26 and 4,989.74 is: 7,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.16 : 15,810.26 = 4,989.74 : x
  2. Step 2: Convert to fraction form
    10,535.16/15,810.26 = 4,989.74/x
  3. Step 3: Cross multiply
    10,535.16x = 15,810.26 × 4,989.74
  4. Step 4: Simplify right side
    10,535.16x = 78,888,982.73
  5. Step 5: Solve for x
    x = 78,888,982.73/10,535.16
  6. Step 6: Final answer
    x = 7,488.16

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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.