Home / 8,960.67-12,363.75-5,423.79

Finding the Fourth Proportional to 8,960.67, 12,363.75 and 5,423.79

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Solution

The fourth proportional to 8,960.67, 12,363.75 and 5,423.79 is: 7,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.67 : 12,363.75 = 5,423.79 : x
  2. Step 2: Convert to fraction form
    8,960.67/12,363.75 = 5,423.79/x
  3. Step 3: Cross multiply
    8,960.67x = 12,363.75 × 5,423.79
  4. Step 4: Simplify right side
    8,960.67x = 67,058,383.61
  5. Step 5: Solve for x
    x = 67,058,383.61/8,960.67
  6. Step 6: Final answer
    x = 7,483.63

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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.