Home / 19,486.13-26,889.85-10,988.01

Finding the Fourth Proportional to 19,486.13, 26,889.85 and 10,988.01

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Solution

The fourth proportional to 19,486.13, 26,889.85 and 10,988.01 is: 15,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.13 : 26,889.85 = 10,988.01 : x
  2. Step 2: Convert to fraction form
    19,486.13/26,889.85 = 10,988.01/x
  3. Step 3: Cross multiply
    19,486.13x = 26,889.85 × 10,988.01
  4. Step 4: Simplify right side
    19,486.13x = 295,465,940.70
  5. Step 5: Solve for x
    x = 295,465,940.70/19,486.13
  6. Step 6: Final answer
    x = 15,162.88

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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.