Home / 9,364.75-12,923.75-5,385.87

Finding the Fourth Proportional to 9,364.75, 12,923.75 and 5,385.87

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Solution

The fourth proportional to 9,364.75, 12,923.75 and 5,385.87 is: 7,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.75 : 12,923.75 = 5,385.87 : x
  2. Step 2: Convert to fraction form
    9,364.75/12,923.75 = 5,385.87/x
  3. Step 3: Cross multiply
    9,364.75x = 12,923.75 × 5,385.87
  4. Step 4: Simplify right side
    9,364.75x = 69,605,605.10
  5. Step 5: Solve for x
    x = 69,605,605.10/9,364.75
  6. Step 6: Final answer
    x = 7,432.72

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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.