Home / 14,113.78-19,476.92-7,740.43

Finding the Fourth Proportional to 14,113.78, 19,476.92 and 7,740.43

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Solution

The fourth proportional to 14,113.78, 19,476.92 and 7,740.43 is: 10,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.78 : 19,476.92 = 7,740.43 : x
  2. Step 2: Convert to fraction form
    14,113.78/19,476.92 = 7,740.43/x
  3. Step 3: Cross multiply
    14,113.78x = 19,476.92 × 7,740.43
  4. Step 4: Simplify right side
    14,113.78x = 150,759,706.53
  5. Step 5: Solve for x
    x = 150,759,706.53/14,113.78
  6. Step 6: Final answer
    x = 10,681.74

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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.