Home / 10,957.28-15,120.24-6,241.40

Finding the Fourth Proportional to 10,957.28, 15,120.24 and 6,241.40

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Solution

The fourth proportional to 10,957.28, 15,120.24 and 6,241.40 is: 8,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.28 : 15,120.24 = 6,241.40 : x
  2. Step 2: Convert to fraction form
    10,957.28/15,120.24 = 6,241.40/x
  3. Step 3: Cross multiply
    10,957.28x = 15,120.24 × 6,241.40
  4. Step 4: Simplify right side
    10,957.28x = 94,371,465.94
  5. Step 5: Solve for x
    x = 94,371,465.94/10,957.28
  6. Step 6: Final answer
    x = 8,612.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.