Home / 9,363.34-12,921.40-5,171.58

Finding the Fourth Proportional to 9,363.34, 12,921.40 and 5,171.58

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Solution

The fourth proportional to 9,363.34, 12,921.40 and 5,171.58 is: 7,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.34 : 12,921.40 = 5,171.58 : x
  2. Step 2: Convert to fraction form
    9,363.34/12,921.40 = 5,171.58/x
  3. Step 3: Cross multiply
    9,363.34x = 12,921.40 × 5,171.58
  4. Step 4: Simplify right side
    9,363.34x = 66,824,053.81
  5. Step 5: Solve for x
    x = 66,824,053.81/9,363.34
  6. Step 6: Final answer
    x = 7,136.78

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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.