Home / 15,320.31-21,141.48-8,606.22

Finding the Fourth Proportional to 15,320.31, 21,141.48 and 8,606.22

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Solution

The fourth proportional to 15,320.31, 21,141.48 and 8,606.22 is: 11,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320.31 : 21,141.48 = 8,606.22 : x
  2. Step 2: Convert to fraction form
    15,320.31/21,141.48 = 8,606.22/x
  3. Step 3: Cross multiply
    15,320.31x = 21,141.48 × 8,606.22
  4. Step 4: Simplify right side
    15,320.31x = 181,948,228.01
  5. Step 5: Solve for x
    x = 181,948,228.01/15,320.31
  6. Step 6: Final answer
    x = 11,876.28

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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.