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Finding the Fourth Proportional to 8,000.58, 11,071.71 and 7,509.72

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Solution

The fourth proportional to 8,000.58, 11,071.71 and 7,509.72 is: 10,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.58 : 11,071.71 = 7,509.72 : x
  2. Step 2: Convert to fraction form
    8,000.58/11,071.71 = 7,509.72/x
  3. Step 3: Cross multiply
    8,000.58x = 11,071.71 × 7,509.72
  4. Step 4: Simplify right side
    8,000.58x = 83,145,442.02
  5. Step 5: Solve for x
    x = 83,145,442.02/8,000.58
  6. Step 6: Final answer
    x = 10,392.43

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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.