Home / 15,410.98-21,257.13-9,440.47

Finding the Fourth Proportional to 15,410.98, 21,257.13 and 9,440.47

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Solution

The fourth proportional to 15,410.98, 21,257.13 and 9,440.47 is: 13,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.98 : 21,257.13 = 9,440.47 : x
  2. Step 2: Convert to fraction form
    15,410.98/21,257.13 = 9,440.47/x
  3. Step 3: Cross multiply
    15,410.98x = 21,257.13 × 9,440.47
  4. Step 4: Simplify right side
    15,410.98x = 200,677,298.05
  5. Step 5: Solve for x
    x = 200,677,298.05/15,410.98
  6. Step 6: Final answer
    x = 13,021.71

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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.