Home / 19,210.80-26,513.49-11,256.20

Finding the Fourth Proportional to 19,210.80, 26,513.49 and 11,256.20

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Solution

The fourth proportional to 19,210.80, 26,513.49 and 11,256.20 is: 15,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.80 : 26,513.49 = 11,256.20 : x
  2. Step 2: Convert to fraction form
    19,210.80/26,513.49 = 11,256.20/x
  3. Step 3: Cross multiply
    19,210.80x = 26,513.49 × 11,256.20
  4. Step 4: Simplify right side
    19,210.80x = 298,441,013.57
  5. Step 5: Solve for x
    x = 298,441,013.57/19,210.80
  6. Step 6: Final answer
    x = 15,535.06

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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.