Home / 18,910.41-26,095.47-10,955.20

Finding the Fourth Proportional to 18,910.41, 26,095.47 and 10,955.20

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Solution

The fourth proportional to 18,910.41, 26,095.47 and 10,955.20 is: 15,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.41 : 26,095.47 = 10,955.20 : x
  2. Step 2: Convert to fraction form
    18,910.41/26,095.47 = 10,955.20/x
  3. Step 3: Cross multiply
    18,910.41x = 26,095.47 × 10,955.20
  4. Step 4: Simplify right side
    18,910.41x = 285,881,035.55
  5. Step 5: Solve for x
    x = 285,881,035.55/18,910.41
  6. Step 6: Final answer
    x = 15,117.65

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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.