Home / 9,170.16-12,654.96-4,978.41

Finding the Fourth Proportional to 9,170.16, 12,654.96 and 4,978.41

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Solution

The fourth proportional to 9,170.16, 12,654.96 and 4,978.41 is: 6,870.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.16 : 12,654.96 = 4,978.41 : x
  2. Step 2: Convert to fraction form
    9,170.16/12,654.96 = 4,978.41/x
  3. Step 3: Cross multiply
    9,170.16x = 12,654.96 × 4,978.41
  4. Step 4: Simplify right side
    9,170.16x = 63,001,579.41
  5. Step 5: Solve for x
    x = 63,001,579.41/9,170.16
  6. Step 6: Final answer
    x = 6,870.28

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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.