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Finding the Fourth Proportional to 7,013.52, 9,678.60 and 3,826.86

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Solution

The fourth proportional to 7,013.52, 9,678.60 and 3,826.86 is: 5,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.52 : 9,678.60 = 3,826.86 : x
  2. Step 2: Convert to fraction form
    7,013.52/9,678.60 = 3,826.86/x
  3. Step 3: Cross multiply
    7,013.52x = 9,678.60 × 3,826.86
  4. Step 4: Simplify right side
    7,013.52x = 37,038,647.20
  5. Step 5: Solve for x
    x = 37,038,647.20/7,013.52
  6. Step 6: Final answer
    x = 5,281.04

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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.