Home / 8,916.90-12,307.40-5,932.86

Finding the Fourth Proportional to 8,916.90, 12,307.40 and 5,932.86

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Solution

The fourth proportional to 8,916.90, 12,307.40 and 5,932.86 is: 8,188.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.90 : 12,307.40 = 5,932.86 : x
  2. Step 2: Convert to fraction form
    8,916.90/12,307.40 = 5,932.86/x
  3. Step 3: Cross multiply
    8,916.90x = 12,307.40 × 5,932.86
  4. Step 4: Simplify right side
    8,916.90x = 73,018,081.16
  5. Step 5: Solve for x
    x = 73,018,081.16/8,916.90
  6. Step 6: Final answer
    x = 8,188.73

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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.