Home / 11,125.94-15,355.51-6,345.89

Finding the Fourth Proportional to 11,125.94, 15,355.51 and 6,345.89

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Solution

The fourth proportional to 11,125.94, 15,355.51 and 6,345.89 is: 8,758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.94 : 15,355.51 = 6,345.89 : x
  2. Step 2: Convert to fraction form
    11,125.94/15,355.51 = 6,345.89/x
  3. Step 3: Cross multiply
    11,125.94x = 15,355.51 × 6,345.89
  4. Step 4: Simplify right side
    11,125.94x = 97,444,431.61
  5. Step 5: Solve for x
    x = 97,444,431.61/11,125.94
  6. Step 6: Final answer
    x = 8,758.31

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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.