Home / 13,341.76-18,412.80-7,754.56

Finding the Fourth Proportional to 13,341.76, 18,412.80 and 7,754.56

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Solution

The fourth proportional to 13,341.76, 18,412.80 and 7,754.56 is: 10,701.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.76 : 18,412.80 = 7,754.56 : x
  2. Step 2: Convert to fraction form
    13,341.76/18,412.80 = 7,754.56/x
  3. Step 3: Cross multiply
    13,341.76x = 18,412.80 × 7,754.56
  4. Step 4: Simplify right side
    13,341.76x = 142,783,162.37
  5. Step 5: Solve for x
    x = 142,783,162.37/13,341.76
  6. Step 6: Final answer
    x = 10,701.97

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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.