Home / 19,419.49-26,798.16-11,863.18

Finding the Fourth Proportional to 19,419.49, 26,798.16 and 11,863.18

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Solution

The fourth proportional to 19,419.49, 26,798.16 and 11,863.18 is: 16,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.49 : 26,798.16 = 11,863.18 : x
  2. Step 2: Convert to fraction form
    19,419.49/26,798.16 = 11,863.18/x
  3. Step 3: Cross multiply
    19,419.49x = 26,798.16 × 11,863.18
  4. Step 4: Simplify right side
    19,419.49x = 317,911,395.75
  5. Step 5: Solve for x
    x = 317,911,395.75/19,419.49
  6. Step 6: Final answer
    x = 16,370.74

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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.