Home / 8,631.90-11,904.66-7,294.02

Finding the Fourth Proportional to 8,631.90, 11,904.66 and 7,294.02

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Solution

The fourth proportional to 8,631.90, 11,904.66 and 7,294.02 is: 10,059.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.90 : 11,904.66 = 7,294.02 : x
  2. Step 2: Convert to fraction form
    8,631.90/11,904.66 = 7,294.02/x
  3. Step 3: Cross multiply
    8,631.90x = 11,904.66 × 7,294.02
  4. Step 4: Simplify right side
    8,631.90x = 86,832,828.13
  5. Step 5: Solve for x
    x = 86,832,828.13/8,631.90
  6. Step 6: Final answer
    x = 10,059.53

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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.