Home / 18,211.96-25,135.28-13,124.35

Finding the Fourth Proportional to 18,211.96, 25,135.28 and 13,124.35

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Solution

The fourth proportional to 18,211.96, 25,135.28 and 13,124.35 is: 18,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.96 : 25,135.28 = 13,124.35 : x
  2. Step 2: Convert to fraction form
    18,211.96/25,135.28 = 13,124.35/x
  3. Step 3: Cross multiply
    18,211.96x = 25,135.28 × 13,124.35
  4. Step 4: Simplify right side
    18,211.96x = 329,884,212.07
  5. Step 5: Solve for x
    x = 329,884,212.07/18,211.96
  6. Step 6: Final answer
    x = 18,113.60

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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.