Home / 13,306.87-18,365.19-11,064.89

Finding the Fourth Proportional to 13,306.87, 18,365.19 and 11,064.89

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Solution

The fourth proportional to 13,306.87, 18,365.19 and 11,064.89 is: 15,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.87 : 18,365.19 = 11,064.89 : x
  2. Step 2: Convert to fraction form
    13,306.87/18,365.19 = 11,064.89/x
  3. Step 3: Cross multiply
    13,306.87x = 18,365.19 × 11,064.89
  4. Step 4: Simplify right side
    13,306.87x = 203,208,807.18
  5. Step 5: Solve for x
    x = 203,208,807.18/13,306.87
  6. Step 6: Final answer
    x = 15,270.97

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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.