Home / 18,509.50-25,543.48-10,126.18

Finding the Fourth Proportional to 18,509.50, 25,543.48 and 10,126.18

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Solution

The fourth proportional to 18,509.50, 25,543.48 and 10,126.18 is: 13,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.50 : 25,543.48 = 10,126.18 : x
  2. Step 2: Convert to fraction form
    18,509.50/25,543.48 = 10,126.18/x
  3. Step 3: Cross multiply
    18,509.50x = 25,543.48 × 10,126.18
  4. Step 4: Simplify right side
    18,509.50x = 258,657,876.31
  5. Step 5: Solve for x
    x = 258,657,876.31/18,509.50
  6. Step 6: Final answer
    x = 13,974.33

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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.