Home / 13,266.78-18,298.74-11,263.47

Finding the Fourth Proportional to 13,266.78, 18,298.74 and 11,263.47

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Solution

The fourth proportional to 13,266.78, 18,298.74 and 11,263.47 is: 15,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.78 : 18,298.74 = 11,263.47 : x
  2. Step 2: Convert to fraction form
    13,266.78/18,298.74 = 11,263.47/x
  3. Step 3: Cross multiply
    13,266.78x = 18,298.74 × 11,263.47
  4. Step 4: Simplify right side
    13,266.78x = 206,107,309.03
  5. Step 5: Solve for x
    x = 206,107,309.03/13,266.78
  6. Step 6: Final answer
    x = 15,535.59

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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.