Home / 12,383.79-18,563.18-6,148.31

Finding the Fourth Proportional to 12,383.79, 18,563.18 and 6,148.31

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Solution

The fourth proportional to 12,383.79, 18,563.18 and 6,148.31 is: 9,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.79 : 18,563.18 = 6,148.31 : x
  2. Step 2: Convert to fraction form
    12,383.79/18,563.18 = 6,148.31/x
  3. Step 3: Cross multiply
    12,383.79x = 18,563.18 × 6,148.31
  4. Step 4: Simplify right side
    12,383.79x = 114,132,061.67
  5. Step 5: Solve for x
    x = 114,132,061.67/12,383.79
  6. Step 6: Final answer
    x = 9,216.25

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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.