Home / 10,389.20-15,574.53-4,541.18

Finding the Fourth Proportional to 10,389.20, 15,574.53 and 4,541.18

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Solution

The fourth proportional to 10,389.20, 15,574.53 and 4,541.18 is: 6,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.20 : 15,574.53 = 4,541.18 : x
  2. Step 2: Convert to fraction form
    10,389.20/15,574.53 = 4,541.18/x
  3. Step 3: Cross multiply
    10,389.20x = 15,574.53 × 4,541.18
  4. Step 4: Simplify right side
    10,389.20x = 70,726,744.15
  5. Step 5: Solve for x
    x = 70,726,744.15/10,389.20
  6. Step 6: Final answer
    x = 6,807.72

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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.