Home / 12,018.24-16,581.53-6,981.48

Finding the Fourth Proportional to 12,018.24, 16,581.53 and 6,981.48

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Solution

The fourth proportional to 12,018.24, 16,581.53 and 6,981.48 is: 9,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.24 : 16,581.53 = 6,981.48 : x
  2. Step 2: Convert to fraction form
    12,018.24/16,581.53 = 6,981.48/x
  3. Step 3: Cross multiply
    12,018.24x = 16,581.53 × 6,981.48
  4. Step 4: Simplify right side
    12,018.24x = 115,763,537.16
  5. Step 5: Solve for x
    x = 115,763,537.16/12,018.24
  6. Step 6: Final answer
    x = 9,632.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.