Home / 19,564.40-27,002.76-12,851.12

Finding the Fourth Proportional to 19,564.40, 27,002.76 and 12,851.12

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Solution

The fourth proportional to 19,564.40, 27,002.76 and 12,851.12 is: 17,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,564.40 : 27,002.76 = 12,851.12 : x
  2. Step 2: Convert to fraction form
    19,564.40/27,002.76 = 12,851.12/x
  3. Step 3: Cross multiply
    19,564.40x = 27,002.76 × 12,851.12
  4. Step 4: Simplify right side
    19,564.40x = 347,015,709.09
  5. Step 5: Solve for x
    x = 347,015,709.09/19,564.40
  6. Step 6: Final answer
    x = 17,737.10

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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.