Home / 12,346.31-18,451.52-9,021.48

Finding the Fourth Proportional to 12,346.31, 18,451.52 and 9,021.48

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Solution

The fourth proportional to 12,346.31, 18,451.52 and 9,021.48 is: 13,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.31 : 18,451.52 = 9,021.48 : x
  2. Step 2: Convert to fraction form
    12,346.31/18,451.52 = 9,021.48/x
  3. Step 3: Cross multiply
    12,346.31x = 18,451.52 × 9,021.48
  4. Step 4: Simplify right side
    12,346.31x = 166,459,973.54
  5. Step 5: Solve for x
    x = 166,459,973.54/12,346.31
  6. Step 6: Final answer
    x = 13,482.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.