Home / 12,223.48-18,319.02-6,662.56

Finding the Fourth Proportional to 12,223.48, 18,319.02 and 6,662.56

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Solution

The fourth proportional to 12,223.48, 18,319.02 and 6,662.56 is: 9,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.48 : 18,319.02 = 6,662.56 : x
  2. Step 2: Convert to fraction form
    12,223.48/18,319.02 = 6,662.56/x
  3. Step 3: Cross multiply
    12,223.48x = 18,319.02 × 6,662.56
  4. Step 4: Simplify right side
    12,223.48x = 122,051,569.89
  5. Step 5: Solve for x
    x = 122,051,569.89/12,223.48
  6. Step 6: Final answer
    x = 9,985.01

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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.