Home / 15,371.98-21,208.74-9,397.52

Finding the Fourth Proportional to 15,371.98, 21,208.74 and 9,397.52

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Solution

The fourth proportional to 15,371.98, 21,208.74 and 9,397.52 is: 12,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.98 : 21,208.74 = 9,397.52 : x
  2. Step 2: Convert to fraction form
    15,371.98/21,208.74 = 9,397.52/x
  3. Step 3: Cross multiply
    15,371.98x = 21,208.74 × 9,397.52
  4. Step 4: Simplify right side
    15,371.98x = 199,309,496.57
  5. Step 5: Solve for x
    x = 199,309,496.57/15,371.98
  6. Step 6: Final answer
    x = 12,965.77

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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.