Home / 14,975.84-20,666.87-8,261.75

Finding the Fourth Proportional to 14,975.84, 20,666.87 and 8,261.75

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Solution

The fourth proportional to 14,975.84, 20,666.87 and 8,261.75 is: 11,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.84 : 20,666.87 = 8,261.75 : x
  2. Step 2: Convert to fraction form
    14,975.84/20,666.87 = 8,261.75/x
  3. Step 3: Cross multiply
    14,975.84x = 20,666.87 × 8,261.75
  4. Step 4: Simplify right side
    14,975.84x = 170,744,368.58
  5. Step 5: Solve for x
    x = 170,744,368.58/14,975.84
  6. Step 6: Final answer
    x = 11,401.33

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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.