Home / 11,125.13-15,353.69-6,410.39

Finding the Fourth Proportional to 11,125.13, 15,353.69 and 6,410.39

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Solution

The fourth proportional to 11,125.13, 15,353.69 and 6,410.39 is: 8,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.13 : 15,353.69 = 6,410.39 : x
  2. Step 2: Convert to fraction form
    11,125.13/15,353.69 = 6,410.39/x
  3. Step 3: Cross multiply
    11,125.13x = 15,353.69 × 6,410.39
  4. Step 4: Simplify right side
    11,125.13x = 98,423,032.02
  5. Step 5: Solve for x
    x = 98,423,032.02/11,125.13
  6. Step 6: Final answer
    x = 8,846.91

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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.