Home / 9,135.79-12,606.03-5,357.53

Finding the Fourth Proportional to 9,135.79, 12,606.03 and 5,357.53

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Solution

The fourth proportional to 9,135.79, 12,606.03 and 5,357.53 is: 7,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.79 : 12,606.03 = 5,357.53 : x
  2. Step 2: Convert to fraction form
    9,135.79/12,606.03 = 5,357.53/x
  3. Step 3: Cross multiply
    9,135.79x = 12,606.03 × 5,357.53
  4. Step 4: Simplify right side
    9,135.79x = 67,537,120.88
  5. Step 5: Solve for x
    x = 67,537,120.88/9,135.79
  6. Step 6: Final answer
    x = 7,392.59

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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.