Home / 13,319.37-19,968.73-8,629.47

Finding the Fourth Proportional to 13,319.37, 19,968.73 and 8,629.47

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Solution

The fourth proportional to 13,319.37, 19,968.73 and 8,629.47 is: 12,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.37 : 19,968.73 = 8,629.47 : x
  2. Step 2: Convert to fraction form
    13,319.37/19,968.73 = 8,629.47/x
  3. Step 3: Cross multiply
    13,319.37x = 19,968.73 × 8,629.47
  4. Step 4: Simplify right side
    13,319.37x = 172,319,534.90
  5. Step 5: Solve for x
    x = 172,319,534.90/13,319.37
  6. Step 6: Final answer
    x = 12,937.51

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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.