Home / 9,921.89-13,692.92-6,558.86

Finding the Fourth Proportional to 9,921.89, 13,692.92 and 6,558.86

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Solution

The fourth proportional to 9,921.89, 13,692.92 and 6,558.86 is: 9,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.89 : 13,692.92 = 6,558.86 : x
  2. Step 2: Convert to fraction form
    9,921.89/13,692.92 = 6,558.86/x
  3. Step 3: Cross multiply
    9,921.89x = 13,692.92 × 6,558.86
  4. Step 4: Simplify right side
    9,921.89x = 89,809,946.71
  5. Step 5: Solve for x
    x = 89,809,946.71/9,921.89
  6. Step 6: Final answer
    x = 9,051.70

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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.