Home / 15,507.05-21,379.75-11,264.27

Finding the Fourth Proportional to 15,507.05, 21,379.75 and 11,264.27

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Solution

The fourth proportional to 15,507.05, 21,379.75 and 11,264.27 is: 15,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.05 : 21,379.75 = 11,264.27 : x
  2. Step 2: Convert to fraction form
    15,507.05/21,379.75 = 11,264.27/x
  3. Step 3: Cross multiply
    15,507.05x = 21,379.75 × 11,264.27
  4. Step 4: Simplify right side
    15,507.05x = 240,827,141.47
  5. Step 5: Solve for x
    x = 240,827,141.47/15,507.05
  6. Step 6: Final answer
    x = 15,530.18

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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.