Home / 14,445.56-19,934.76-7,821.56

Finding the Fourth Proportional to 14,445.56, 19,934.76 and 7,821.56

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Solution

The fourth proportional to 14,445.56, 19,934.76 and 7,821.56 is: 10,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.56 : 19,934.76 = 7,821.56 : x
  2. Step 2: Convert to fraction form
    14,445.56/19,934.76 = 7,821.56/x
  3. Step 3: Cross multiply
    14,445.56x = 19,934.76 × 7,821.56
  4. Step 4: Simplify right side
    14,445.56x = 155,920,921.43
  5. Step 5: Solve for x
    x = 155,920,921.43/14,445.56
  6. Step 6: Final answer
    x = 10,793.69

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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.