Home / 9,047.81-12,488.67-5,512.76

Finding the Fourth Proportional to 9,047.81, 12,488.67 and 5,512.76

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Solution

The fourth proportional to 9,047.81, 12,488.67 and 5,512.76 is: 7,609.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047.81 : 12,488.67 = 5,512.76 : x
  2. Step 2: Convert to fraction form
    9,047.81/12,488.67 = 5,512.76/x
  3. Step 3: Cross multiply
    9,047.81x = 12,488.67 × 5,512.76
  4. Step 4: Simplify right side
    9,047.81x = 68,846,977.99
  5. Step 5: Solve for x
    x = 68,846,977.99/9,047.81
  6. Step 6: Final answer
    x = 7,609.25

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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.