Home / 15,326.10-21,146.25-9,355.59

Finding the Fourth Proportional to 15,326.10, 21,146.25 and 9,355.59

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Solution

The fourth proportional to 15,326.10, 21,146.25 and 9,355.59 is: 12,908.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.10 : 21,146.25 = 9,355.59 : x
  2. Step 2: Convert to fraction form
    15,326.10/21,146.25 = 9,355.59/x
  3. Step 3: Cross multiply
    15,326.10x = 21,146.25 × 9,355.59
  4. Step 4: Simplify right side
    15,326.10x = 197,835,645.04
  5. Step 5: Solve for x
    x = 197,835,645.04/15,326.10
  6. Step 6: Final answer
    x = 12,908.41

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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.