Home / 14,513.80-21,774.85-7,120.39

Finding the Fourth Proportional to 14,513.80, 21,774.85 and 7,120.39

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Solution

The fourth proportional to 14,513.80, 21,774.85 and 7,120.39 is: 10,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,513.80 : 21,774.85 = 7,120.39 : x
  2. Step 2: Convert to fraction form
    14,513.80/21,774.85 = 7,120.39/x
  3. Step 3: Cross multiply
    14,513.80x = 21,774.85 × 7,120.39
  4. Step 4: Simplify right side
    14,513.80x = 155,045,424.19
  5. Step 5: Solve for x
    x = 155,045,424.19/14,513.80
  6. Step 6: Final answer
    x = 10,682.62

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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.