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Finding the Fourth Proportional to 7,901.04, 10,899.50 and 4,712.09

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Solution

The fourth proportional to 7,901.04, 10,899.50 and 4,712.09 is: 6,500.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.04 : 10,899.50 = 4,712.09 : x
  2. Step 2: Convert to fraction form
    7,901.04/10,899.50 = 4,712.09/x
  3. Step 3: Cross multiply
    7,901.04x = 10,899.50 × 4,712.09
  4. Step 4: Simplify right side
    7,901.04x = 51,359,424.96
  5. Step 5: Solve for x
    x = 51,359,424.96/7,901.04
  6. Step 6: Final answer
    x = 6,500.34

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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.