Home / 9,815.34-13,531.92-6,666.06

Finding the Fourth Proportional to 9,815.34, 13,531.92 and 6,666.06

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Solution

The fourth proportional to 9,815.34, 13,531.92 and 6,666.06 is: 9,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.34 : 13,531.92 = 6,666.06 : x
  2. Step 2: Convert to fraction form
    9,815.34/13,531.92 = 6,666.06/x
  3. Step 3: Cross multiply
    9,815.34x = 13,531.92 × 6,666.06
  4. Step 4: Simplify right side
    9,815.34x = 90,204,590.64
  5. Step 5: Solve for x
    x = 90,204,590.64/9,815.34
  6. Step 6: Final answer
    x = 9,190.16

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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.