Home / 9,129.33-12,599.06-5,148.99

Finding the Fourth Proportional to 9,129.33, 12,599.06 and 5,148.99

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Solution

The fourth proportional to 9,129.33, 12,599.06 and 5,148.99 is: 7,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.33 : 12,599.06 = 5,148.99 : x
  2. Step 2: Convert to fraction form
    9,129.33/12,599.06 = 5,148.99/x
  3. Step 3: Cross multiply
    9,129.33x = 12,599.06 × 5,148.99
  4. Step 4: Simplify right side
    9,129.33x = 64,872,433.95
  5. Step 5: Solve for x
    x = 64,872,433.95/9,129.33
  6. Step 6: Final answer
    x = 7,105.94

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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.