Home / 19,118.61-26,382.78-10,621.28

Finding the Fourth Proportional to 19,118.61, 26,382.78 and 10,621.28

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Solution

The fourth proportional to 19,118.61, 26,382.78 and 10,621.28 is: 14,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.61 : 26,382.78 = 10,621.28 : x
  2. Step 2: Convert to fraction form
    19,118.61/26,382.78 = 10,621.28/x
  3. Step 3: Cross multiply
    19,118.61x = 26,382.78 × 10,621.28
  4. Step 4: Simplify right side
    19,118.61x = 280,218,761.64
  5. Step 5: Solve for x
    x = 280,218,761.64/19,118.61
  6. Step 6: Final answer
    x = 14,656.86

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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.