Home / 11,443.08-15,791.49-6,407.52

Finding the Fourth Proportional to 11,443.08, 15,791.49 and 6,407.52

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Solution

The fourth proportional to 11,443.08, 15,791.49 and 6,407.52 is: 8,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,443.08 : 15,791.49 = 6,407.52 : x
  2. Step 2: Convert to fraction form
    11,443.08/15,791.49 = 6,407.52/x
  3. Step 3: Cross multiply
    11,443.08x = 15,791.49 × 6,407.52
  4. Step 4: Simplify right side
    11,443.08x = 101,184,288.00
  5. Step 5: Solve for x
    x = 101,184,288.00/11,443.08
  6. Step 6: Final answer
    x = 8,842.40

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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.