Home / 8,931.11-12,322.67-5,393.66

Finding the Fourth Proportional to 8,931.11, 12,322.67 and 5,393.66

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Solution

The fourth proportional to 8,931.11, 12,322.67 and 5,393.66 is: 7,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.11 : 12,322.67 = 5,393.66 : x
  2. Step 2: Convert to fraction form
    8,931.11/12,322.67 = 5,393.66/x
  3. Step 3: Cross multiply
    8,931.11x = 12,322.67 × 5,393.66
  4. Step 4: Simplify right side
    8,931.11x = 66,464,203.69
  5. Step 5: Solve for x
    x = 66,464,203.69/8,931.11
  6. Step 6: Final answer
    x = 7,441.88

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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.