Home / 9,642.90-13,306.07-5,394.18

Finding the Fourth Proportional to 9,642.90, 13,306.07 and 5,394.18

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Solution

The fourth proportional to 9,642.90, 13,306.07 and 5,394.18 is: 7,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642.90 : 13,306.07 = 5,394.18 : x
  2. Step 2: Convert to fraction form
    9,642.90/13,306.07 = 5,394.18/x
  3. Step 3: Cross multiply
    9,642.90x = 13,306.07 × 5,394.18
  4. Step 4: Simplify right side
    9,642.90x = 71,775,336.67
  5. Step 5: Solve for x
    x = 71,775,336.67/9,642.90
  6. Step 6: Final answer
    x = 7,443.34

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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.