Home / 10,152.40-15,228.42-5,219.14

Finding the Fourth Proportional to 10,152.40, 15,228.42 and 5,219.14

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Solution

The fourth proportional to 10,152.40, 15,228.42 and 5,219.14 is: 7,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.40 : 15,228.42 = 5,219.14 : x
  2. Step 2: Convert to fraction form
    10,152.40/15,228.42 = 5,219.14/x
  3. Step 3: Cross multiply
    10,152.40x = 15,228.42 × 5,219.14
  4. Step 4: Simplify right side
    10,152.40x = 79,479,255.96
  5. Step 5: Solve for x
    x = 79,479,255.96/10,152.40
  6. Step 6: Final answer
    x = 7,828.62

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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.