Home / 15,445.82-21,281.27-10,906.45

Finding the Fourth Proportional to 15,445.82, 21,281.27 and 10,906.45

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Solution

The fourth proportional to 15,445.82, 21,281.27 and 10,906.45 is: 15,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.82 : 21,281.27 = 10,906.45 : x
  2. Step 2: Convert to fraction form
    15,445.82/21,281.27 = 10,906.45/x
  3. Step 3: Cross multiply
    15,445.82x = 21,281.27 × 10,906.45
  4. Step 4: Simplify right side
    15,445.82x = 232,102,999.46
  5. Step 5: Solve for x
    x = 232,102,999.46/15,445.82
  6. Step 6: Final answer
    x = 15,026.91

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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.