Home / 9,540.90-13,166.58-5,349.18

Finding the Fourth Proportional to 9,540.90, 13,166.58 and 5,349.18

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Solution

The fourth proportional to 9,540.90, 13,166.58 and 5,349.18 is: 7,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.90 : 13,166.58 = 5,349.18 : x
  2. Step 2: Convert to fraction form
    9,540.90/13,166.58 = 5,349.18/x
  3. Step 3: Cross multiply
    9,540.90x = 13,166.58 × 5,349.18
  4. Step 4: Simplify right side
    9,540.90x = 70,430,406.40
  5. Step 5: Solve for x
    x = 70,430,406.40/9,540.90
  6. Step 6: Final answer
    x = 7,381.95

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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.