Home / 8,929.47-12,321.53-4,950.55

Finding the Fourth Proportional to 8,929.47, 12,321.53 and 4,950.55

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Solution

The fourth proportional to 8,929.47, 12,321.53 and 4,950.55 is: 6,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.47 : 12,321.53 = 4,950.55 : x
  2. Step 2: Convert to fraction form
    8,929.47/12,321.53 = 4,950.55/x
  3. Step 3: Cross multiply
    8,929.47x = 12,321.53 × 4,950.55
  4. Step 4: Simplify right side
    8,929.47x = 60,998,350.34
  5. Step 5: Solve for x
    x = 60,998,350.34/8,929.47
  6. Step 6: Final answer
    x = 6,831.13

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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.