Home / 13,967.12-20,920.56-6,560.48

Finding the Fourth Proportional to 13,967.12, 20,920.56 and 6,560.48

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Solution

The fourth proportional to 13,967.12, 20,920.56 and 6,560.48 is: 9,826.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.12 : 20,920.56 = 6,560.48 : x
  2. Step 2: Convert to fraction form
    13,967.12/20,920.56 = 6,560.48/x
  3. Step 3: Cross multiply
    13,967.12x = 20,920.56 × 6,560.48
  4. Step 4: Simplify right side
    13,967.12x = 137,248,810.87
  5. Step 5: Solve for x
    x = 137,248,810.87/13,967.12
  6. Step 6: Final answer
    x = 9,826.57

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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.