Home / 13,345.36-19,988.88-6,760.24

Finding the Fourth Proportional to 13,345.36, 19,988.88 and 6,760.24

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Solution

The fourth proportional to 13,345.36, 19,988.88 and 6,760.24 is: 10,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.36 : 19,988.88 = 6,760.24 : x
  2. Step 2: Convert to fraction form
    13,345.36/19,988.88 = 6,760.24/x
  3. Step 3: Cross multiply
    13,345.36x = 19,988.88 × 6,760.24
  4. Step 4: Simplify right side
    13,345.36x = 135,129,626.13
  5. Step 5: Solve for x
    x = 135,129,626.13/13,345.36
  6. Step 6: Final answer
    x = 10,125.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.