Home / 18,920.32-26,082.77-13,237.47

Finding the Fourth Proportional to 18,920.32, 26,082.77 and 13,237.47

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Solution

The fourth proportional to 18,920.32, 26,082.77 and 13,237.47 is: 18,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.32 : 26,082.77 = 13,237.47 : x
  2. Step 2: Convert to fraction form
    18,920.32/26,082.77 = 13,237.47/x
  3. Step 3: Cross multiply
    18,920.32x = 26,082.77 × 13,237.47
  4. Step 4: Simplify right side
    18,920.32x = 345,269,885.39
  5. Step 5: Solve for x
    x = 345,269,885.39/18,920.32
  6. Step 6: Final answer
    x = 18,248.63

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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.