Home / 13,671.32-20,491.05-6,276.56

Finding the Fourth Proportional to 13,671.32, 20,491.05 and 6,276.56

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Solution

The fourth proportional to 13,671.32, 20,491.05 and 6,276.56 is: 9,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.32 : 20,491.05 = 6,276.56 : x
  2. Step 2: Convert to fraction form
    13,671.32/20,491.05 = 6,276.56/x
  3. Step 3: Cross multiply
    13,671.32x = 20,491.05 × 6,276.56
  4. Step 4: Simplify right side
    13,671.32x = 128,613,304.79
  5. Step 5: Solve for x
    x = 128,613,304.79/13,671.32
  6. Step 6: Final answer
    x = 9,407.53

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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.