Home / 9,554.90-13,186.59-5,306.78

Finding the Fourth Proportional to 9,554.90, 13,186.59 and 5,306.78

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Solution

The fourth proportional to 9,554.90, 13,186.59 and 5,306.78 is: 7,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,554.90 : 13,186.59 = 5,306.78 : x
  2. Step 2: Convert to fraction form
    9,554.90/13,186.59 = 5,306.78/x
  3. Step 3: Cross multiply
    9,554.90x = 13,186.59 × 5,306.78
  4. Step 4: Simplify right side
    9,554.90x = 69,978,332.08
  5. Step 5: Solve for x
    x = 69,978,332.08/9,554.90
  6. Step 6: Final answer
    x = 7,323.82

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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.