Home / 15,517.74-21,439.54-10,822.98

Finding the Fourth Proportional to 15,517.74, 21,439.54 and 10,822.98

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Solution

The fourth proportional to 15,517.74, 21,439.54 and 10,822.98 is: 14,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.74 : 21,439.54 = 10,822.98 : x
  2. Step 2: Convert to fraction form
    15,517.74/21,439.54 = 10,822.98/x
  3. Step 3: Cross multiply
    15,517.74x = 21,439.54 × 10,822.98
  4. Step 4: Simplify right side
    15,517.74x = 232,039,712.63
  5. Step 5: Solve for x
    x = 232,039,712.63/15,517.74
  6. Step 6: Final answer
    x = 14,953.19

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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.