Home / 19,363.15-26,721.29-12,644.81

Finding the Fourth Proportional to 19,363.15, 26,721.29 and 12,644.81

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Solution

The fourth proportional to 19,363.15, 26,721.29 and 12,644.81 is: 17,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.15 : 26,721.29 = 12,644.81 : x
  2. Step 2: Convert to fraction form
    19,363.15/26,721.29 = 12,644.81/x
  3. Step 3: Cross multiply
    19,363.15x = 26,721.29 × 12,644.81
  4. Step 4: Simplify right side
    19,363.15x = 337,885,633.22
  5. Step 5: Solve for x
    x = 337,885,633.22/19,363.15
  6. Step 6: Final answer
    x = 17,449.93

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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.