Home / 13,256.30-19,877.97-7,711.58

Finding the Fourth Proportional to 13,256.30, 19,877.97 and 7,711.58

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Solution

The fourth proportional to 13,256.30, 19,877.97 and 7,711.58 is: 11,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.30 : 19,877.97 = 7,711.58 : x
  2. Step 2: Convert to fraction form
    13,256.30/19,877.97 = 7,711.58/x
  3. Step 3: Cross multiply
    13,256.30x = 19,877.97 × 7,711.58
  4. Step 4: Simplify right side
    13,256.30x = 153,290,555.89
  5. Step 5: Solve for x
    x = 153,290,555.89/13,256.30
  6. Step 6: Final answer
    x = 11,563.60

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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.