Home / 13,294.80-19,785.27-12,851.88

Finding the Fourth Proportional to 13,294.80, 19,785.27 and 12,851.88

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Solution

The fourth proportional to 13,294.80, 19,785.27 and 12,851.88 is: 19,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.80 : 19,785.27 = 12,851.88 : x
  2. Step 2: Convert to fraction form
    13,294.80/19,785.27 = 12,851.88/x
  3. Step 3: Cross multiply
    13,294.80x = 19,785.27 × 12,851.88
  4. Step 4: Simplify right side
    13,294.80x = 254,277,915.81
  5. Step 5: Solve for x
    x = 254,277,915.81/13,294.80
  6. Step 6: Final answer
    x = 19,126.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.