Home / 8,922.48-12,313.50-5,385.93

Finding the Fourth Proportional to 8,922.48, 12,313.50 and 5,385.93

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Solution

The fourth proportional to 8,922.48, 12,313.50 and 5,385.93 is: 7,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.48 : 12,313.50 = 5,385.93 : x
  2. Step 2: Convert to fraction form
    8,922.48/12,313.50 = 5,385.93/x
  3. Step 3: Cross multiply
    8,922.48x = 12,313.50 × 5,385.93
  4. Step 4: Simplify right side
    8,922.48x = 66,319,649.06
  5. Step 5: Solve for x
    x = 66,319,649.06/8,922.48
  6. Step 6: Final answer
    x = 7,432.87

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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.