Home / 6,931.52-10,388.28-5,282

Finding the Fourth Proportional to 6,931.52, 10,388.28 and 5,282

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Solution

The fourth proportional to 6,931.52, 10,388.28 and 5,282 is: 7,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.52 : 10,388.28 = 5,282 : x
  2. Step 2: Convert to fraction form
    6,931.52/10,388.28 = 5,282/x
  3. Step 3: Cross multiply
    6,931.52x = 10,388.28 × 5,282
  4. Step 4: Simplify right side
    6,931.52x = 54,870,894.96
  5. Step 5: Solve for x
    x = 54,870,894.96/6,931.52
  6. Step 6: Final answer
    x = 7,916.14

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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.