Home / 15,417.13-21,264.18-9,367.34

Finding the Fourth Proportional to 15,417.13, 21,264.18 and 9,367.34

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Solution

The fourth proportional to 15,417.13, 21,264.18 and 9,367.34 is: 12,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.13 : 21,264.18 = 9,367.34 : x
  2. Step 2: Convert to fraction form
    15,417.13/21,264.18 = 9,367.34/x
  3. Step 3: Cross multiply
    15,417.13x = 21,264.18 × 9,367.34
  4. Step 4: Simplify right side
    15,417.13x = 199,188,803.88
  5. Step 5: Solve for x
    x = 199,188,803.88/15,417.13
  6. Step 6: Final answer
    x = 12,919.97

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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.