Home / 13,769.29-19,000.55-7,801.89

Finding the Fourth Proportional to 13,769.29, 19,000.55 and 7,801.89

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Solution

The fourth proportional to 13,769.29, 19,000.55 and 7,801.89 is: 10,766.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.29 : 19,000.55 = 7,801.89 : x
  2. Step 2: Convert to fraction form
    13,769.29/19,000.55 = 7,801.89/x
  3. Step 3: Cross multiply
    13,769.29x = 19,000.55 × 7,801.89
  4. Step 4: Simplify right side
    13,769.29x = 148,240,287.67
  5. Step 5: Solve for x
    x = 148,240,287.67/13,769.29
  6. Step 6: Final answer
    x = 10,766.01

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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.