Home / 13,802.58-20,691.36-5,031.36

Finding the Fourth Proportional to 13,802.58, 20,691.36 and 5,031.36

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Solution

The fourth proportional to 13,802.58, 20,691.36 and 5,031.36 is: 7,542.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.58 : 20,691.36 = 5,031.36 : x
  2. Step 2: Convert to fraction form
    13,802.58/20,691.36 = 5,031.36/x
  3. Step 3: Cross multiply
    13,802.58x = 20,691.36 × 5,031.36
  4. Step 4: Simplify right side
    13,802.58x = 104,105,681.05
  5. Step 5: Solve for x
    x = 104,105,681.05/13,802.58
  6. Step 6: Final answer
    x = 7,542.48

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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.