Home / 13,809.51-20,716.70-5,056.65

Finding the Fourth Proportional to 13,809.51, 20,716.70 and 5,056.65

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Solution

The fourth proportional to 13,809.51, 20,716.70 and 5,056.65 is: 7,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.51 : 20,716.70 = 5,056.65 : x
  2. Step 2: Convert to fraction form
    13,809.51/20,716.70 = 5,056.65/x
  3. Step 3: Cross multiply
    13,809.51x = 20,716.70 × 5,056.65
  4. Step 4: Simplify right side
    13,809.51x = 104,757,075.77
  5. Step 5: Solve for x
    x = 104,757,075.77/13,809.51
  6. Step 6: Final answer
    x = 7,585.86

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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.