Home / 15,145.45-20,888.88-9,841.97

Finding the Fourth Proportional to 15,145.45, 20,888.88 and 9,841.97

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Solution

The fourth proportional to 15,145.45, 20,888.88 and 9,841.97 is: 13,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.45 : 20,888.88 = 9,841.97 : x
  2. Step 2: Convert to fraction form
    15,145.45/20,888.88 = 9,841.97/x
  3. Step 3: Cross multiply
    15,145.45x = 20,888.88 × 9,841.97
  4. Step 4: Simplify right side
    15,145.45x = 205,587,730.29
  5. Step 5: Solve for x
    x = 205,587,730.29/15,145.45
  6. Step 6: Final answer
    x = 13,574.22

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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.