Home / 11,383.78-15,707.94-6,603.52

Finding the Fourth Proportional to 11,383.78, 15,707.94 and 6,603.52

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Solution

The fourth proportional to 11,383.78, 15,707.94 and 6,603.52 is: 9,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,383.78 : 15,707.94 = 6,603.52 : x
  2. Step 2: Convert to fraction form
    11,383.78/15,707.94 = 6,603.52/x
  3. Step 3: Cross multiply
    11,383.78x = 15,707.94 × 6,603.52
  4. Step 4: Simplify right side
    11,383.78x = 103,727,695.95
  5. Step 5: Solve for x
    x = 103,727,695.95/11,383.78
  6. Step 6: Final answer
    x = 9,111.89

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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.