Home / 12,388.08-18,570.60-6,144.24

Finding the Fourth Proportional to 12,388.08, 18,570.60 and 6,144.24

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Solution

The fourth proportional to 12,388.08, 18,570.60 and 6,144.24 is: 9,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.08 : 18,570.60 = 6,144.24 : x
  2. Step 2: Convert to fraction form
    12,388.08/18,570.60 = 6,144.24/x
  3. Step 3: Cross multiply
    12,388.08x = 18,570.60 × 6,144.24
  4. Step 4: Simplify right side
    12,388.08x = 114,102,223.34
  5. Step 5: Solve for x
    x = 114,102,223.34/12,388.08
  6. Step 6: Final answer
    x = 9,210.65

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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.