Home / 11,359.08-15,666.66-7,381.49

Finding the Fourth Proportional to 11,359.08, 15,666.66 and 7,381.49

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Solution

The fourth proportional to 11,359.08, 15,666.66 and 7,381.49 is: 10,180.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.08 : 15,666.66 = 7,381.49 : x
  2. Step 2: Convert to fraction form
    11,359.08/15,666.66 = 7,381.49/x
  3. Step 3: Cross multiply
    11,359.08x = 15,666.66 × 7,381.49
  4. Step 4: Simplify right side
    11,359.08x = 115,643,215.79
  5. Step 5: Solve for x
    x = 115,643,215.79/11,359.08
  6. Step 6: Final answer
    x = 10,180.69

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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.