Home / 9,579.50-13,219.58-5,387.76

Finding the Fourth Proportional to 9,579.50, 13,219.58 and 5,387.76

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Solution

The fourth proportional to 9,579.50, 13,219.58 and 5,387.76 is: 7,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.50 : 13,219.58 = 5,387.76 : x
  2. Step 2: Convert to fraction form
    9,579.50/13,219.58 = 5,387.76/x
  3. Step 3: Cross multiply
    9,579.50x = 13,219.58 × 5,387.76
  4. Step 4: Simplify right side
    9,579.50x = 71,223,924.34
  5. Step 5: Solve for x
    x = 71,223,924.34/9,579.50
  6. Step 6: Final answer
    x = 7,435.04

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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.