Home / 13,700.88-20,543.56-4,339.12

Finding the Fourth Proportional to 13,700.88, 20,543.56 and 4,339.12

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Solution

The fourth proportional to 13,700.88, 20,543.56 and 4,339.12 is: 6,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.88 : 20,543.56 = 4,339.12 : x
  2. Step 2: Convert to fraction form
    13,700.88/20,543.56 = 4,339.12/x
  3. Step 3: Cross multiply
    13,700.88x = 20,543.56 × 4,339.12
  4. Step 4: Simplify right side
    13,700.88x = 89,140,972.07
  5. Step 5: Solve for x
    x = 89,140,972.07/13,700.88
  6. Step 6: Final answer
    x = 6,506.22

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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.