Home / 9,353.81-12,908.28-5,162.06

Finding the Fourth Proportional to 9,353.81, 12,908.28 and 5,162.06

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Solution

The fourth proportional to 9,353.81, 12,908.28 and 5,162.06 is: 7,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.81 : 12,908.28 = 5,162.06 : x
  2. Step 2: Convert to fraction form
    9,353.81/12,908.28 = 5,162.06/x
  3. Step 3: Cross multiply
    9,353.81x = 12,908.28 × 5,162.06
  4. Step 4: Simplify right side
    9,353.81x = 66,633,338.45
  5. Step 5: Solve for x
    x = 66,633,338.45/9,353.81
  6. Step 6: Final answer
    x = 7,123.66

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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.