Home / 9,039.79-12,475.65-5,212.68

Finding the Fourth Proportional to 9,039.79, 12,475.65 and 5,212.68

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Solution

The fourth proportional to 9,039.79, 12,475.65 and 5,212.68 is: 7,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.79 : 12,475.65 = 5,212.68 : x
  2. Step 2: Convert to fraction form
    9,039.79/12,475.65 = 5,212.68/x
  3. Step 3: Cross multiply
    9,039.79x = 12,475.65 × 5,212.68
  4. Step 4: Simplify right side
    9,039.79x = 65,031,571.24
  5. Step 5: Solve for x
    x = 65,031,571.24/9,039.79
  6. Step 6: Final answer
    x = 7,193.92

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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.