Home / 9,715.28-13,402.84-6,176.60

Finding the Fourth Proportional to 9,715.28, 13,402.84 and 6,176.60

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Solution

The fourth proportional to 9,715.28, 13,402.84 and 6,176.60 is: 8,521.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.28 : 13,402.84 = 6,176.60 : x
  2. Step 2: Convert to fraction form
    9,715.28/13,402.84 = 6,176.60/x
  3. Step 3: Cross multiply
    9,715.28x = 13,402.84 × 6,176.60
  4. Step 4: Simplify right side
    9,715.28x = 82,783,981.54
  5. Step 5: Solve for x
    x = 82,783,981.54/9,715.28
  6. Step 6: Final answer
    x = 8,521.01

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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.