Home / 10,541.55-15,812.34-3,969.21

Finding the Fourth Proportional to 10,541.55, 15,812.34 and 3,969.21

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Solution

The fourth proportional to 10,541.55, 15,812.34 and 3,969.21 is: 5,953.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,541.55 : 15,812.34 = 3,969.21 : x
  2. Step 2: Convert to fraction form
    10,541.55/15,812.34 = 3,969.21/x
  3. Step 3: Cross multiply
    10,541.55x = 15,812.34 × 3,969.21
  4. Step 4: Simplify right side
    10,541.55x = 62,762,498.05
  5. Step 5: Solve for x
    x = 62,762,498.05/10,541.55
  6. Step 6: Final answer
    x = 5,953.82

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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.