Home / 19,540.26-26,966.06-11,990.76

Finding the Fourth Proportional to 19,540.26, 26,966.06 and 11,990.76

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Solution

The fourth proportional to 19,540.26, 26,966.06 and 11,990.76 is: 16,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.26 : 26,966.06 = 11,990.76 : x
  2. Step 2: Convert to fraction form
    19,540.26/26,966.06 = 11,990.76/x
  3. Step 3: Cross multiply
    19,540.26x = 26,966.06 × 11,990.76
  4. Step 4: Simplify right side
    19,540.26x = 323,343,426.24
  5. Step 5: Solve for x
    x = 323,343,426.24/19,540.26
  6. Step 6: Final answer
    x = 16,547.55

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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.