Home / 9,671.28-13,346.34-5,479.50

Finding the Fourth Proportional to 9,671.28, 13,346.34 and 5,479.50

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Solution

The fourth proportional to 9,671.28, 13,346.34 and 5,479.50 is: 7,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,671.28 : 13,346.34 = 5,479.50 : x
  2. Step 2: Convert to fraction form
    9,671.28/13,346.34 = 5,479.50/x
  3. Step 3: Cross multiply
    9,671.28x = 13,346.34 × 5,479.50
  4. Step 4: Simplify right side
    9,671.28x = 73,131,270.03
  5. Step 5: Solve for x
    x = 73,131,270.03/9,671.28
  6. Step 6: Final answer
    x = 7,561.70

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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.