Home / 9,333.93-12,880.80-5,142.18

Finding the Fourth Proportional to 9,333.93, 12,880.80 and 5,142.18

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Solution

The fourth proportional to 9,333.93, 12,880.80 and 5,142.18 is: 7,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.93 : 12,880.80 = 5,142.18 : x
  2. Step 2: Convert to fraction form
    9,333.93/12,880.80 = 5,142.18/x
  3. Step 3: Cross multiply
    9,333.93x = 12,880.80 × 5,142.18
  4. Step 4: Simplify right side
    9,333.93x = 66,235,392.14
  5. Step 5: Solve for x
    x = 66,235,392.14/9,333.93
  6. Step 6: Final answer
    x = 7,096.20

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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.