Home / 7,988.09-11,023.90-4,631.65

Finding the Fourth Proportional to 7,988.09, 11,023.90 and 4,631.65

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Solution

The fourth proportional to 7,988.09, 11,023.90 and 4,631.65 is: 6,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.09 : 11,023.90 = 4,631.65 : x
  2. Step 2: Convert to fraction form
    7,988.09/11,023.90 = 4,631.65/x
  3. Step 3: Cross multiply
    7,988.09x = 11,023.90 × 4,631.65
  4. Step 4: Simplify right side
    7,988.09x = 51,058,807.30
  5. Step 5: Solve for x
    x = 51,058,807.30/7,988.09
  6. Step 6: Final answer
    x = 6,391.87

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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.