Home / 8,930.96-12,339.28-7,434.08

Finding the Fourth Proportional to 8,930.96, 12,339.28 and 7,434.08

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Solution

The fourth proportional to 8,930.96, 12,339.28 and 7,434.08 is: 10,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.96 : 12,339.28 = 7,434.08 : x
  2. Step 2: Convert to fraction form
    8,930.96/12,339.28 = 7,434.08/x
  3. Step 3: Cross multiply
    8,930.96x = 12,339.28 × 7,434.08
  4. Step 4: Simplify right side
    8,930.96x = 91,731,194.66
  5. Step 5: Solve for x
    x = 91,731,194.66/8,930.96
  6. Step 6: Final answer
    x = 10,271.15

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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.