Home / 8,864.12-12,219.06-7,289.48

Finding the Fourth Proportional to 8,864.12, 12,219.06 and 7,289.48

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Solution

The fourth proportional to 8,864.12, 12,219.06 and 7,289.48 is: 10,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.12 : 12,219.06 = 7,289.48 : x
  2. Step 2: Convert to fraction form
    8,864.12/12,219.06 = 7,289.48/x
  3. Step 3: Cross multiply
    8,864.12x = 12,219.06 × 7,289.48
  4. Step 4: Simplify right side
    8,864.12x = 89,070,593.49
  5. Step 5: Solve for x
    x = 89,070,593.49/8,864.12
  6. Step 6: Final answer
    x = 10,048.44

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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.