Home / 18,778.32-25,913.85-10,280.34

Finding the Fourth Proportional to 18,778.32, 25,913.85 and 10,280.34

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Solution

The fourth proportional to 18,778.32, 25,913.85 and 10,280.34 is: 14,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.32 : 25,913.85 = 10,280.34 : x
  2. Step 2: Convert to fraction form
    18,778.32/25,913.85 = 10,280.34/x
  3. Step 3: Cross multiply
    18,778.32x = 25,913.85 × 10,280.34
  4. Step 4: Simplify right side
    18,778.32x = 266,403,188.71
  5. Step 5: Solve for x
    x = 266,403,188.71/18,778.32
  6. Step 6: Final answer
    x = 14,186.74

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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.