Home / 8,948.67-12,349.92-4,970.55

Finding the Fourth Proportional to 8,948.67, 12,349.92 and 4,970.55

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Solution

The fourth proportional to 8,948.67, 12,349.92 and 4,970.55 is: 6,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.67 : 12,349.92 = 4,970.55 : x
  2. Step 2: Convert to fraction form
    8,948.67/12,349.92 = 4,970.55/x
  3. Step 3: Cross multiply
    8,948.67x = 12,349.92 × 4,970.55
  4. Step 4: Simplify right side
    8,948.67x = 61,385,894.86
  5. Step 5: Solve for x
    x = 61,385,894.86/8,948.67
  6. Step 6: Final answer
    x = 6,859.78

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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.