Home / 8,378.86-11,562.02-5,021.62

Finding the Fourth Proportional to 8,378.86, 11,562.02 and 5,021.62

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Solution

The fourth proportional to 8,378.86, 11,562.02 and 5,021.62 is: 6,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.86 : 11,562.02 = 5,021.62 : x
  2. Step 2: Convert to fraction form
    8,378.86/11,562.02 = 5,021.62/x
  3. Step 3: Cross multiply
    8,378.86x = 11,562.02 × 5,021.62
  4. Step 4: Simplify right side
    8,378.86x = 58,060,070.87
  5. Step 5: Solve for x
    x = 58,060,070.87/8,378.86
  6. Step 6: Final answer
    x = 6,929.35

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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.