Home / 8,868.47-12,232.34-7,189.94

Finding the Fourth Proportional to 8,868.47, 12,232.34 and 7,189.94

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Solution

The fourth proportional to 8,868.47, 12,232.34 and 7,189.94 is: 9,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.47 : 12,232.34 = 7,189.94 : x
  2. Step 2: Convert to fraction form
    8,868.47/12,232.34 = 7,189.94/x
  3. Step 3: Cross multiply
    8,868.47x = 12,232.34 × 7,189.94
  4. Step 4: Simplify right side
    8,868.47x = 87,949,754.71
  5. Step 5: Solve for x
    x = 87,949,754.71/8,868.47
  6. Step 6: Final answer
    x = 9,917.13

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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.