Home / 12,881.54-19,277.08-11,146.92

Finding the Fourth Proportional to 12,881.54, 19,277.08 and 11,146.92

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Solution

The fourth proportional to 12,881.54, 19,277.08 and 11,146.92 is: 16,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.54 : 19,277.08 = 11,146.92 : x
  2. Step 2: Convert to fraction form
    12,881.54/19,277.08 = 11,146.92/x
  3. Step 3: Cross multiply
    12,881.54x = 19,277.08 × 11,146.92
  4. Step 4: Simplify right side
    12,881.54x = 214,880,068.59
  5. Step 5: Solve for x
    x = 214,880,068.59/12,881.54
  6. Step 6: Final answer
    x = 16,681.24

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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.