Home / 9,469.90-13,068.48-5,278.15

Finding the Fourth Proportional to 9,469.90, 13,068.48 and 5,278.15

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Solution

The fourth proportional to 9,469.90, 13,068.48 and 5,278.15 is: 7,283.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,469.90 : 13,068.48 = 5,278.15 : x
  2. Step 2: Convert to fraction form
    9,469.90/13,068.48 = 5,278.15/x
  3. Step 3: Cross multiply
    9,469.90x = 13,068.48 × 5,278.15
  4. Step 4: Simplify right side
    9,469.90x = 68,977,397.71
  5. Step 5: Solve for x
    x = 68,977,397.71/9,469.90
  6. Step 6: Final answer
    x = 7,283.86

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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.