Home / 7,985.33-11,019.76-4,448.66

Finding the Fourth Proportional to 7,985.33, 11,019.76 and 4,448.66

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Solution

The fourth proportional to 7,985.33, 11,019.76 and 4,448.66 is: 6,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.33 : 11,019.76 = 4,448.66 : x
  2. Step 2: Convert to fraction form
    7,985.33/11,019.76 = 4,448.66/x
  3. Step 3: Cross multiply
    7,985.33x = 11,019.76 × 4,448.66
  4. Step 4: Simplify right side
    7,985.33x = 49,023,165.52
  5. Step 5: Solve for x
    x = 49,023,165.52/7,985.33
  6. Step 6: Final answer
    x = 6,139.16

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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.