Home / 14,975.40-20,666.04-8,261.46

Finding the Fourth Proportional to 14,975.40, 20,666.04 and 8,261.46

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Solution

The fourth proportional to 14,975.40, 20,666.04 and 8,261.46 is: 11,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.40 : 20,666.04 = 8,261.46 : x
  2. Step 2: Convert to fraction form
    14,975.40/20,666.04 = 8,261.46/x
  3. Step 3: Cross multiply
    14,975.40x = 20,666.04 × 8,261.46
  4. Step 4: Simplify right side
    14,975.40x = 170,731,662.82
  5. Step 5: Solve for x
    x = 170,731,662.82/14,975.40
  6. Step 6: Final answer
    x = 11,400.81

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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.