Home / 10,520.49-14,518.25-5,804.78

Finding the Fourth Proportional to 10,520.49, 14,518.25 and 5,804.78

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Solution

The fourth proportional to 10,520.49, 14,518.25 and 5,804.78 is: 8,010.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.49 : 14,518.25 = 5,804.78 : x
  2. Step 2: Convert to fraction form
    10,520.49/14,518.25 = 5,804.78/x
  3. Step 3: Cross multiply
    10,520.49x = 14,518.25 × 5,804.78
  4. Step 4: Simplify right side
    10,520.49x = 84,275,145.62
  5. Step 5: Solve for x
    x = 84,275,145.62/10,520.49
  6. Step 6: Final answer
    x = 8,010.57

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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.