Home / 13,990.42-19,290.96-10,411.74

Finding the Fourth Proportional to 13,990.42, 19,290.96 and 10,411.74

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Solution

The fourth proportional to 13,990.42, 19,290.96 and 10,411.74 is: 14,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.42 : 19,290.96 = 10,411.74 : x
  2. Step 2: Convert to fraction form
    13,990.42/19,290.96 = 10,411.74/x
  3. Step 3: Cross multiply
    13,990.42x = 19,290.96 × 10,411.74
  4. Step 4: Simplify right side
    13,990.42x = 200,852,459.87
  5. Step 5: Solve for x
    x = 200,852,459.87/13,990.42
  6. Step 6: Final answer
    x = 14,356.43

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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.