Home / 13,359.19-20,054.31-7,816.51

Finding the Fourth Proportional to 13,359.19, 20,054.31 and 7,816.51

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Solution

The fourth proportional to 13,359.19, 20,054.31 and 7,816.51 is: 11,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.19 : 20,054.31 = 7,816.51 : x
  2. Step 2: Convert to fraction form
    13,359.19/20,054.31 = 7,816.51/x
  3. Step 3: Cross multiply
    13,359.19x = 20,054.31 × 7,816.51
  4. Step 4: Simplify right side
    13,359.19x = 156,754,776.37
  5. Step 5: Solve for x
    x = 156,754,776.37/13,359.19
  6. Step 6: Final answer
    x = 11,733.85

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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.