Home / 18,701.47-25,809.20-10,317.97

Finding the Fourth Proportional to 18,701.47, 25,809.20 and 10,317.97

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Solution

The fourth proportional to 18,701.47, 25,809.20 and 10,317.97 is: 14,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.47 : 25,809.20 = 10,317.97 : x
  2. Step 2: Convert to fraction form
    18,701.47/25,809.20 = 10,317.97/x
  3. Step 3: Cross multiply
    18,701.47x = 25,809.20 × 10,317.97
  4. Step 4: Simplify right side
    18,701.47x = 266,298,551.32
  5. Step 5: Solve for x
    x = 266,298,551.32/18,701.47
  6. Step 6: Final answer
    x = 14,239.44

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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.