Home / 15,626.90-21,575.20-13,945.41

Finding the Fourth Proportional to 15,626.90, 21,575.20 and 13,945.41

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Solution

The fourth proportional to 15,626.90, 21,575.20 and 13,945.41 is: 19,253.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.90 : 21,575.20 = 13,945.41 : x
  2. Step 2: Convert to fraction form
    15,626.90/21,575.20 = 13,945.41/x
  3. Step 3: Cross multiply
    15,626.90x = 21,575.20 × 13,945.41
  4. Step 4: Simplify right side
    15,626.90x = 300,875,009.83
  5. Step 5: Solve for x
    x = 300,875,009.83/15,626.90
  6. Step 6: Final answer
    x = 19,253.66

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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.