Home / 8,867.15-12,236.70-5,330.42

Finding the Fourth Proportional to 8,867.15, 12,236.70 and 5,330.42

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Solution

The fourth proportional to 8,867.15, 12,236.70 and 5,330.42 is: 7,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.15 : 12,236.70 = 5,330.42 : x
  2. Step 2: Convert to fraction form
    8,867.15/12,236.70 = 5,330.42/x
  3. Step 3: Cross multiply
    8,867.15x = 12,236.70 × 5,330.42
  4. Step 4: Simplify right side
    8,867.15x = 65,226,750.41
  5. Step 5: Solve for x
    x = 65,226,750.41/8,867.15
  6. Step 6: Final answer
    x = 7,356.00

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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.