Home / 13,643.63-20,387.78-10,244.26

Finding the Fourth Proportional to 13,643.63, 20,387.78 and 10,244.26

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Solution

The fourth proportional to 13,643.63, 20,387.78 and 10,244.26 is: 15,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.63 : 20,387.78 = 10,244.26 : x
  2. Step 2: Convert to fraction form
    13,643.63/20,387.78 = 10,244.26/x
  3. Step 3: Cross multiply
    13,643.63x = 20,387.78 × 10,244.26
  4. Step 4: Simplify right side
    13,643.63x = 208,857,719.14
  5. Step 5: Solve for x
    x = 208,857,719.14/13,643.63
  6. Step 6: Final answer
    x = 15,308.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.