Home / 7,988.93-11,023.39-4,631.12

Finding the Fourth Proportional to 7,988.93, 11,023.39 and 4,631.12

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Solution

The fourth proportional to 7,988.93, 11,023.39 and 4,631.12 is: 6,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.93 : 11,023.39 = 4,631.12 : x
  2. Step 2: Convert to fraction form
    7,988.93/11,023.39 = 4,631.12/x
  3. Step 3: Cross multiply
    7,988.93x = 11,023.39 × 4,631.12
  4. Step 4: Simplify right side
    7,988.93x = 51,050,695.91
  5. Step 5: Solve for x
    x = 51,050,695.91/7,988.93
  6. Step 6: Final answer
    x = 6,390.18

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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.