Home / 13,555.68-18,696.94-9,071.52

Finding the Fourth Proportional to 13,555.68, 18,696.94 and 9,071.52

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Solution

The fourth proportional to 13,555.68, 18,696.94 and 9,071.52 is: 12,512.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.68 : 18,696.94 = 9,071.52 : x
  2. Step 2: Convert to fraction form
    13,555.68/18,696.94 = 9,071.52/x
  3. Step 3: Cross multiply
    13,555.68x = 18,696.94 × 9,071.52
  4. Step 4: Simplify right side
    13,555.68x = 169,609,665.15
  5. Step 5: Solve for x
    x = 169,609,665.15/13,555.68
  6. Step 6: Final answer
    x = 12,512.07

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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.