Home / 10,988.94-15,169.23-7,636.62

Finding the Fourth Proportional to 10,988.94, 15,169.23 and 7,636.62

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Solution

The fourth proportional to 10,988.94, 15,169.23 and 7,636.62 is: 10,541.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.94 : 15,169.23 = 7,636.62 : x
  2. Step 2: Convert to fraction form
    10,988.94/15,169.23 = 7,636.62/x
  3. Step 3: Cross multiply
    10,988.94x = 15,169.23 × 7,636.62
  4. Step 4: Simplify right side
    10,988.94x = 115,841,645.20
  5. Step 5: Solve for x
    x = 115,841,645.20/10,988.94
  6. Step 6: Final answer
    x = 10,541.66

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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.