Home / 8,929.66-12,322.92-5,392.18

Finding the Fourth Proportional to 8,929.66, 12,322.92 and 5,392.18

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Solution

The fourth proportional to 8,929.66, 12,322.92 and 5,392.18 is: 7,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.66 : 12,322.92 = 5,392.18 : x
  2. Step 2: Convert to fraction form
    8,929.66/12,322.92 = 5,392.18/x
  3. Step 3: Cross multiply
    8,929.66x = 12,322.92 × 5,392.18
  4. Step 4: Simplify right side
    8,929.66x = 66,447,402.77
  5. Step 5: Solve for x
    x = 66,447,402.77/8,929.66
  6. Step 6: Final answer
    x = 7,441.20

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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.