Home / 10,862.18-16,281.62-7,112.53

Finding the Fourth Proportional to 10,862.18, 16,281.62 and 7,112.53

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Solution

The fourth proportional to 10,862.18, 16,281.62 and 7,112.53 is: 10,661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.18 : 16,281.62 = 7,112.53 : x
  2. Step 2: Convert to fraction form
    10,862.18/16,281.62 = 7,112.53/x
  3. Step 3: Cross multiply
    10,862.18x = 16,281.62 × 7,112.53
  4. Step 4: Simplify right side
    10,862.18x = 115,803,475.14
  5. Step 5: Solve for x
    x = 115,803,475.14/10,862.18
  6. Step 6: Final answer
    x = 10,661.17

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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.