Home / 11,101.61-15,319.17-7,509.26

Finding the Fourth Proportional to 11,101.61, 15,319.17 and 7,509.26

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Solution

The fourth proportional to 11,101.61, 15,319.17 and 7,509.26 is: 10,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.61 : 15,319.17 = 7,509.26 : x
  2. Step 2: Convert to fraction form
    11,101.61/15,319.17 = 7,509.26/x
  3. Step 3: Cross multiply
    11,101.61x = 15,319.17 × 7,509.26
  4. Step 4: Simplify right side
    11,101.61x = 115,035,553.92
  5. Step 5: Solve for x
    x = 115,035,553.92/11,101.61
  6. Step 6: Final answer
    x = 10,362.07

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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.