Home / 12,960.10-19,411.35-11,232.10

Finding the Fourth Proportional to 12,960.10, 19,411.35 and 11,232.10

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Solution

The fourth proportional to 12,960.10, 19,411.35 and 11,232.10 is: 16,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.10 : 19,411.35 = 11,232.10 : x
  2. Step 2: Convert to fraction form
    12,960.10/19,411.35 = 11,232.10/x
  3. Step 3: Cross multiply
    12,960.10x = 19,411.35 × 11,232.10
  4. Step 4: Simplify right side
    12,960.10x = 218,030,224.34
  5. Step 5: Solve for x
    x = 218,030,224.34/12,960.10
  6. Step 6: Final answer
    x = 16,823.19

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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.