Home / 19,101.12-28,652.56-5,250.12

Finding the Fourth Proportional to 19,101.12, 28,652.56 and 5,250.12

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Solution

The fourth proportional to 19,101.12, 28,652.56 and 5,250.12 is: 7,875.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.12 : 28,652.56 = 5,250.12 : x
  2. Step 2: Convert to fraction form
    19,101.12/28,652.56 = 5,250.12/x
  3. Step 3: Cross multiply
    19,101.12x = 28,652.56 × 5,250.12
  4. Step 4: Simplify right side
    19,101.12x = 150,429,378.31
  5. Step 5: Solve for x
    x = 150,429,378.31/19,101.12
  6. Step 6: Final answer
    x = 7,875.42

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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.