Home / 13,514.40-20,271.56-5,306.40

Finding the Fourth Proportional to 13,514.40, 20,271.56 and 5,306.40

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Solution

The fourth proportional to 13,514.40, 20,271.56 and 5,306.40 is: 7,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.40 : 20,271.56 = 5,306.40 : x
  2. Step 2: Convert to fraction form
    13,514.40/20,271.56 = 5,306.40/x
  3. Step 3: Cross multiply
    13,514.40x = 20,271.56 × 5,306.40
  4. Step 4: Simplify right side
    13,514.40x = 107,569,005.98
  5. Step 5: Solve for x
    x = 107,569,005.98/13,514.40
  6. Step 6: Final answer
    x = 7,959.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.