Home / 7,317.40-10,976.10-6,885.40

Finding the Fourth Proportional to 7,317.40, 10,976.10 and 6,885.40

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Solution

The fourth proportional to 7,317.40, 10,976.10 and 6,885.40 is: 10,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.40 : 10,976.10 = 6,885.40 : x
  2. Step 2: Convert to fraction form
    7,317.40/10,976.10 = 6,885.40/x
  3. Step 3: Cross multiply
    7,317.40x = 10,976.10 × 6,885.40
  4. Step 4: Simplify right side
    7,317.40x = 75,574,838.94
  5. Step 5: Solve for x
    x = 75,574,838.94/7,317.40
  6. Step 6: Final answer
    x = 10,328.10

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Similar ratio
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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.