Home / 13,542.07-18,689.01-7,574.30

Finding the Fourth Proportional to 13,542.07, 18,689.01 and 7,574.30

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Solution

The fourth proportional to 13,542.07, 18,689.01 and 7,574.30 is: 10,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.07 : 18,689.01 = 7,574.30 : x
  2. Step 2: Convert to fraction form
    13,542.07/18,689.01 = 7,574.30/x
  3. Step 3: Cross multiply
    13,542.07x = 18,689.01 × 7,574.30
  4. Step 4: Simplify right side
    13,542.07x = 141,556,103.40
  5. Step 5: Solve for x
    x = 141,556,103.40/13,542.07
  6. Step 6: Final answer
    x = 10,453.06

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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.