Home / 10,258.20-15,389.70-5,328.60

Finding the Fourth Proportional to 10,258.20, 15,389.70 and 5,328.60

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Solution

The fourth proportional to 10,258.20, 15,389.70 and 5,328.60 is: 7,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.20 : 15,389.70 = 5,328.60 : x
  2. Step 2: Convert to fraction form
    10,258.20/15,389.70 = 5,328.60/x
  3. Step 3: Cross multiply
    10,258.20x = 15,389.70 × 5,328.60
  4. Step 4: Simplify right side
    10,258.20x = 82,005,555.42
  5. Step 5: Solve for x
    x = 82,005,555.42/10,258.20
  6. Step 6: Final answer
    x = 7,994.15

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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.