Home / 15,010.88-20,701.18-13,818.50

Finding the Fourth Proportional to 15,010.88, 20,701.18 and 13,818.50

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Solution

The fourth proportional to 15,010.88, 20,701.18 and 13,818.50 is: 19,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.88 : 20,701.18 = 13,818.50 : x
  2. Step 2: Convert to fraction form
    15,010.88/20,701.18 = 13,818.50/x
  3. Step 3: Cross multiply
    15,010.88x = 20,701.18 × 13,818.50
  4. Step 4: Simplify right side
    15,010.88x = 286,059,255.83
  5. Step 5: Solve for x
    x = 286,059,255.83/15,010.88
  6. Step 6: Final answer
    x = 19,056.79

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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.