Home / 19,160.79-26,439.80-10,661.57

Finding the Fourth Proportional to 19,160.79, 26,439.80 and 10,661.57

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Solution

The fourth proportional to 19,160.79, 26,439.80 and 10,661.57 is: 14,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,160.79 : 26,439.80 = 10,661.57 : x
  2. Step 2: Convert to fraction form
    19,160.79/26,439.80 = 10,661.57/x
  3. Step 3: Cross multiply
    19,160.79x = 26,439.80 × 10,661.57
  4. Step 4: Simplify right side
    19,160.79x = 281,889,778.49
  5. Step 5: Solve for x
    x = 281,889,778.49/19,160.79
  6. Step 6: Final answer
    x = 14,711.80

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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.