Home / 10,145.48-15,219.66-3,570.92

Finding the Fourth Proportional to 10,145.48, 15,219.66 and 3,570.92

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Solution

The fourth proportional to 10,145.48, 15,219.66 and 3,570.92 is: 5,356.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.48 : 15,219.66 = 3,570.92 : x
  2. Step 2: Convert to fraction form
    10,145.48/15,219.66 = 3,570.92/x
  3. Step 3: Cross multiply
    10,145.48x = 15,219.66 × 3,570.92
  4. Step 4: Simplify right side
    10,145.48x = 54,348,188.29
  5. Step 5: Solve for x
    x = 54,348,188.29/10,145.48
  6. Step 6: Final answer
    x = 5,356.89

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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.