Home / 13,127.47-19,703.05-8,900.48

Finding the Fourth Proportional to 13,127.47, 19,703.05 and 8,900.48

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Solution

The fourth proportional to 13,127.47, 19,703.05 and 8,900.48 is: 13,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.47 : 19,703.05 = 8,900.48 : x
  2. Step 2: Convert to fraction form
    13,127.47/19,703.05 = 8,900.48/x
  3. Step 3: Cross multiply
    13,127.47x = 19,703.05 × 8,900.48
  4. Step 4: Simplify right side
    13,127.47x = 175,366,629.47
  5. Step 5: Solve for x
    x = 175,366,629.47/13,127.47
  6. Step 6: Final answer
    x = 13,358.76

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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.