Home / 18,886.48-26,061.57-10,388.62

Finding the Fourth Proportional to 18,886.48, 26,061.57 and 10,388.62

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Solution

The fourth proportional to 18,886.48, 26,061.57 and 10,388.62 is: 14,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.48 : 26,061.57 = 10,388.62 : x
  2. Step 2: Convert to fraction form
    18,886.48/26,061.57 = 10,388.62/x
  3. Step 3: Cross multiply
    18,886.48x = 26,061.57 × 10,388.62
  4. Step 4: Simplify right side
    18,886.48x = 270,743,747.33
  5. Step 5: Solve for x
    x = 270,743,747.33/18,886.48
  6. Step 6: Final answer
    x = 14,335.32

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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.