Home / 18,878.96-26,053.28-10,381.45

Finding the Fourth Proportional to 18,878.96, 26,053.28 and 10,381.45

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Solution

The fourth proportional to 18,878.96, 26,053.28 and 10,381.45 is: 14,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.96 : 26,053.28 = 10,381.45 : x
  2. Step 2: Convert to fraction form
    18,878.96/26,053.28 = 10,381.45/x
  3. Step 3: Cross multiply
    18,878.96x = 26,053.28 × 10,381.45
  4. Step 4: Simplify right side
    18,878.96x = 270,470,823.66
  5. Step 5: Solve for x
    x = 270,470,823.66/18,878.96
  6. Step 6: Final answer
    x = 14,326.57

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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.