Home / 18,778.15-25,913.46-10,280.07

Finding the Fourth Proportional to 18,778.15, 25,913.46 and 10,280.07

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Solution

The fourth proportional to 18,778.15, 25,913.46 and 10,280.07 is: 14,186.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.15 : 25,913.46 = 10,280.07 : x
  2. Step 2: Convert to fraction form
    18,778.15/25,913.46 = 10,280.07/x
  3. Step 3: Cross multiply
    18,778.15x = 25,913.46 × 10,280.07
  4. Step 4: Simplify right side
    18,778.15x = 266,392,182.74
  5. Step 5: Solve for x
    x = 266,392,182.74/18,778.15
  6. Step 6: Final answer
    x = 14,186.28

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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.