Home / 7,643.57-11,438.01-5,988.74

Finding the Fourth Proportional to 7,643.57, 11,438.01 and 5,988.74

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Solution

The fourth proportional to 7,643.57, 11,438.01 and 5,988.74 is: 8,961.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.57 : 11,438.01 = 5,988.74 : x
  2. Step 2: Convert to fraction form
    7,643.57/11,438.01 = 5,988.74/x
  3. Step 3: Cross multiply
    7,643.57x = 11,438.01 × 5,988.74
  4. Step 4: Simplify right side
    7,643.57x = 68,499,210.82
  5. Step 5: Solve for x
    x = 68,499,210.82/7,643.57
  6. Step 6: Final answer
    x = 8,961.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.