Home / 15,363.96-21,208.80-10,331.10

Finding the Fourth Proportional to 15,363.96, 21,208.80 and 10,331.10

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Solution

The fourth proportional to 15,363.96, 21,208.80 and 10,331.10 is: 14,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363.96 : 21,208.80 = 10,331.10 : x
  2. Step 2: Convert to fraction form
    15,363.96/21,208.80 = 10,331.10/x
  3. Step 3: Cross multiply
    15,363.96x = 21,208.80 × 10,331.10
  4. Step 4: Simplify right side
    15,363.96x = 219,110,233.68
  5. Step 5: Solve for x
    x = 219,110,233.68/15,363.96
  6. Step 6: Final answer
    x = 14,261.31

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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.