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Finding the Fourth Proportional to 6,528.60, 8,996.99 and 6,408.63

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Solution

The fourth proportional to 6,528.60, 8,996.99 and 6,408.63 is: 8,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.60 : 8,996.99 = 6,408.63 : x
  2. Step 2: Convert to fraction form
    6,528.60/8,996.99 = 6,408.63/x
  3. Step 3: Cross multiply
    6,528.60x = 8,996.99 × 6,408.63
  4. Step 4: Simplify right side
    6,528.60x = 57,658,347.98
  5. Step 5: Solve for x
    x = 57,658,347.98/6,528.60
  6. Step 6: Final answer
    x = 8,831.66

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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.