Home / 18,948.14-26,148.02-10,991.10

Finding the Fourth Proportional to 18,948.14, 26,148.02 and 10,991.10

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Solution

The fourth proportional to 18,948.14, 26,148.02 and 10,991.10 is: 15,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.14 : 26,148.02 = 10,991.10 : x
  2. Step 2: Convert to fraction form
    18,948.14/26,148.02 = 10,991.10/x
  3. Step 3: Cross multiply
    18,948.14x = 26,148.02 × 10,991.10
  4. Step 4: Simplify right side
    18,948.14x = 287,395,502.62
  5. Step 5: Solve for x
    x = 287,395,502.62/18,948.14
  6. Step 6: Final answer
    x = 15,167.48

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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.