Home / 10,530.72-15,797.52-4,687.20

Finding the Fourth Proportional to 10,530.72, 15,797.52 and 4,687.20

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Solution

The fourth proportional to 10,530.72, 15,797.52 and 4,687.20 is: 7,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.72 : 15,797.52 = 4,687.20 : x
  2. Step 2: Convert to fraction form
    10,530.72/15,797.52 = 4,687.20/x
  3. Step 3: Cross multiply
    10,530.72x = 15,797.52 × 4,687.20
  4. Step 4: Simplify right side
    10,530.72x = 74,046,135.74
  5. Step 5: Solve for x
    x = 74,046,135.74/10,530.72
  6. Step 6: Final answer
    x = 7,031.44

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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.