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Finding the Fourth Proportional to 6,374.89, 8,778.54 and 5,376.16

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Solution

The fourth proportional to 6,374.89, 8,778.54 and 5,376.16 is: 7,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.89 : 8,778.54 = 5,376.16 : x
  2. Step 2: Convert to fraction form
    6,374.89/8,778.54 = 5,376.16/x
  3. Step 3: Cross multiply
    6,374.89x = 8,778.54 × 5,376.16
  4. Step 4: Simplify right side
    6,374.89x = 47,194,835.61
  5. Step 5: Solve for x
    x = 47,194,835.61/6,374.89
  6. Step 6: Final answer
    x = 7,403.24

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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.