Home / 19,215.30-26,519.16-11,264.21

Finding the Fourth Proportional to 19,215.30, 26,519.16 and 11,264.21

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Solution

The fourth proportional to 19,215.30, 26,519.16 and 11,264.21 is: 15,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.30 : 26,519.16 = 11,264.21 : x
  2. Step 2: Convert to fraction form
    19,215.30/26,519.16 = 11,264.21/x
  3. Step 3: Cross multiply
    19,215.30x = 26,519.16 × 11,264.21
  4. Step 4: Simplify right side
    19,215.30x = 298,717,254.67
  5. Step 5: Solve for x
    x = 298,717,254.67/19,215.30
  6. Step 6: Final answer
    x = 15,545.80

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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.