Home / 13,283.19-18,347.26-9,643.43

Finding the Fourth Proportional to 13,283.19, 18,347.26 and 9,643.43

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Solution

The fourth proportional to 13,283.19, 18,347.26 and 9,643.43 is: 13,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.19 : 18,347.26 = 9,643.43 : x
  2. Step 2: Convert to fraction form
    13,283.19/18,347.26 = 9,643.43/x
  3. Step 3: Cross multiply
    13,283.19x = 18,347.26 × 9,643.43
  4. Step 4: Simplify right side
    13,283.19x = 176,930,447.69
  5. Step 5: Solve for x
    x = 176,930,447.69/13,283.19
  6. Step 6: Final answer
    x = 13,319.88

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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.