Home / 9,129.04-13,680.60-6,669.52

Finding the Fourth Proportional to 9,129.04, 13,680.60 and 6,669.52

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Solution

The fourth proportional to 9,129.04, 13,680.60 and 6,669.52 is: 9,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.04 : 13,680.60 = 6,669.52 : x
  2. Step 2: Convert to fraction form
    9,129.04/13,680.60 = 6,669.52/x
  3. Step 3: Cross multiply
    9,129.04x = 13,680.60 × 6,669.52
  4. Step 4: Simplify right side
    9,129.04x = 91,243,035.31
  5. Step 5: Solve for x
    x = 91,243,035.31/9,129.04
  6. Step 6: Final answer
    x = 9,994.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.