Home / 19,292.80-26,634-12,588.16

Finding the Fourth Proportional to 19,292.80, 26,634 and 12,588.16

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Solution

The fourth proportional to 19,292.80, 26,634 and 12,588.16 is: 17,378.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.80 : 26,634 = 12,588.16 : x
  2. Step 2: Convert to fraction form
    19,292.80/26,634 = 12,588.16/x
  3. Step 3: Cross multiply
    19,292.80x = 26,634 × 12,588.16
  4. Step 4: Simplify right side
    19,292.80x = 335,273,053.44
  5. Step 5: Solve for x
    x = 335,273,053.44/19,292.80
  6. Step 6: Final answer
    x = 17,378.14

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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.