Home / 13,903.80-20,853.52-4,543.74

Finding the Fourth Proportional to 13,903.80, 20,853.52 and 4,543.74

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Solution

The fourth proportional to 13,903.80, 20,853.52 and 4,543.74 is: 6,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.80 : 20,853.52 = 4,543.74 : x
  2. Step 2: Convert to fraction form
    13,903.80/20,853.52 = 4,543.74/x
  3. Step 3: Cross multiply
    13,903.80x = 20,853.52 × 4,543.74
  4. Step 4: Simplify right side
    13,903.80x = 94,752,956.53
  5. Step 5: Solve for x
    x = 94,752,956.53/13,903.80
  6. Step 6: Final answer
    x = 6,814.90

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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.