Home / 19,187.05-26,478.11-10,803.61

Finding the Fourth Proportional to 19,187.05, 26,478.11 and 10,803.61

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Solution

The fourth proportional to 19,187.05, 26,478.11 and 10,803.61 is: 14,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.05 : 26,478.11 = 10,803.61 : x
  2. Step 2: Convert to fraction form
    19,187.05/26,478.11 = 10,803.61/x
  3. Step 3: Cross multiply
    19,187.05x = 26,478.11 × 10,803.61
  4. Step 4: Simplify right side
    19,187.05x = 286,059,119.96
  5. Step 5: Solve for x
    x = 286,059,119.96/19,187.05
  6. Step 6: Final answer
    x = 14,908.97

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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.