Home / 12,629.52-17,421.48-9,088.20

Finding the Fourth Proportional to 12,629.52, 17,421.48 and 9,088.20

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Solution

The fourth proportional to 12,629.52, 17,421.48 and 9,088.20 is: 12,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.52 : 17,421.48 = 9,088.20 : x
  2. Step 2: Convert to fraction form
    12,629.52/17,421.48 = 9,088.20/x
  3. Step 3: Cross multiply
    12,629.52x = 17,421.48 × 9,088.20
  4. Step 4: Simplify right side
    12,629.52x = 158,329,894.54
  5. Step 5: Solve for x
    x = 158,329,894.54/12,629.52
  6. Step 6: Final answer
    x = 12,536.49

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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.