Home / 19,555.14-26,979.02-12,844.40

Finding the Fourth Proportional to 19,555.14, 26,979.02 and 12,844.40

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Solution

The fourth proportional to 19,555.14, 26,979.02 and 12,844.40 is: 17,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.14 : 26,979.02 = 12,844.40 : x
  2. Step 2: Convert to fraction form
    19,555.14/26,979.02 = 12,844.40/x
  3. Step 3: Cross multiply
    19,555.14x = 26,979.02 × 12,844.40
  4. Step 4: Simplify right side
    19,555.14x = 346,529,260.27
  5. Step 5: Solve for x
    x = 346,529,260.27/19,555.14
  6. Step 6: Final answer
    x = 17,720.63

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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.