Home / 12,313.12-16,954.32-11,322.40

Finding the Fourth Proportional to 12,313.12, 16,954.32 and 11,322.40

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Solution

The fourth proportional to 12,313.12, 16,954.32 and 11,322.40 is: 15,590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.12 : 16,954.32 = 11,322.40 : x
  2. Step 2: Convert to fraction form
    12,313.12/16,954.32 = 11,322.40/x
  3. Step 3: Cross multiply
    12,313.12x = 16,954.32 × 11,322.40
  4. Step 4: Simplify right side
    12,313.12x = 191,963,592.77
  5. Step 5: Solve for x
    x = 191,963,592.77/12,313.12
  6. Step 6: Final answer
    x = 15,590.17

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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.