Home / 14,685.08-20,265.22-7,970.65

Finding the Fourth Proportional to 14,685.08, 20,265.22 and 7,970.65

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Solution

The fourth proportional to 14,685.08, 20,265.22 and 7,970.65 is: 10,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,685.08 : 20,265.22 = 7,970.65 : x
  2. Step 2: Convert to fraction form
    14,685.08/20,265.22 = 7,970.65/x
  3. Step 3: Cross multiply
    14,685.08x = 20,265.22 × 7,970.65
  4. Step 4: Simplify right side
    14,685.08x = 161,526,975.79
  5. Step 5: Solve for x
    x = 161,526,975.79/14,685.08
  6. Step 6: Final answer
    x = 10,999.39

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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.