Home / 19,360.17-26,720.15-10,979.37

Finding the Fourth Proportional to 19,360.17, 26,720.15 and 10,979.37

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Solution

The fourth proportional to 19,360.17, 26,720.15 and 10,979.37 is: 15,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.17 : 26,720.15 = 10,979.37 : x
  2. Step 2: Convert to fraction form
    19,360.17/26,720.15 = 10,979.37/x
  3. Step 3: Cross multiply
    19,360.17x = 26,720.15 × 10,979.37
  4. Step 4: Simplify right side
    19,360.17x = 293,370,358.41
  5. Step 5: Solve for x
    x = 293,370,358.41/19,360.17
  6. Step 6: Final answer
    x = 15,153.29

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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.