Home / 12,153.12-16,771.32-6,564.12

Finding the Fourth Proportional to 12,153.12, 16,771.32 and 6,564.12

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Solution

The fourth proportional to 12,153.12, 16,771.32 and 6,564.12 is: 9,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.12 : 16,771.32 = 6,564.12 : x
  2. Step 2: Convert to fraction form
    12,153.12/16,771.32 = 6,564.12/x
  3. Step 3: Cross multiply
    12,153.12x = 16,771.32 × 6,564.12
  4. Step 4: Simplify right side
    12,153.12x = 110,088,957.04
  5. Step 5: Solve for x
    x = 110,088,957.04/12,153.12
  6. Step 6: Final answer
    x = 9,058.49

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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.