Home / 13,554.19-18,699.01-9,578.71

Finding the Fourth Proportional to 13,554.19, 18,699.01 and 9,578.71

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Solution

The fourth proportional to 13,554.19, 18,699.01 and 9,578.71 is: 13,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.19 : 18,699.01 = 9,578.71 : x
  2. Step 2: Convert to fraction form
    13,554.19/18,699.01 = 9,578.71/x
  3. Step 3: Cross multiply
    13,554.19x = 18,699.01 × 9,578.71
  4. Step 4: Simplify right side
    13,554.19x = 179,112,394.08
  5. Step 5: Solve for x
    x = 179,112,394.08/13,554.19
  6. Step 6: Final answer
    x = 13,214.54

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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.