Home / 7,941.68-10,927.33-6,520.13

Finding the Fourth Proportional to 7,941.68, 10,927.33 and 6,520.13

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Solution

The fourth proportional to 7,941.68, 10,927.33 and 6,520.13 is: 8,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.68 : 10,927.33 = 6,520.13 : x
  2. Step 2: Convert to fraction form
    7,941.68/10,927.33 = 6,520.13/x
  3. Step 3: Cross multiply
    7,941.68x = 10,927.33 × 6,520.13
  4. Step 4: Simplify right side
    7,941.68x = 71,247,541.22
  5. Step 5: Solve for x
    x = 71,247,541.22/7,941.68
  6. Step 6: Final answer
    x = 8,971.35

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Double scale
Find fourth proportional to 7,942.68, 10,928.70 and 6,521.13
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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.