Home / 9,821.49-13,519.42-8,560.35

Finding the Fourth Proportional to 9,821.49, 13,519.42 and 8,560.35

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Solution

The fourth proportional to 9,821.49, 13,519.42 and 8,560.35 is: 11,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.49 : 13,519.42 = 8,560.35 : x
  2. Step 2: Convert to fraction form
    9,821.49/13,519.42 = 8,560.35/x
  3. Step 3: Cross multiply
    9,821.49x = 13,519.42 × 8,560.35
  4. Step 4: Simplify right side
    9,821.49x = 115,730,945.60
  5. Step 5: Solve for x
    x = 115,730,945.60/9,821.49
  6. Step 6: Final answer
    x = 11,783.45

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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.