Home / 9,129.82-12,599.16-4,938.07

Finding the Fourth Proportional to 9,129.82, 12,599.16 and 4,938.07

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Solution

The fourth proportional to 9,129.82, 12,599.16 and 4,938.07 is: 6,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.82 : 12,599.16 = 4,938.07 : x
  2. Step 2: Convert to fraction form
    9,129.82/12,599.16 = 4,938.07/x
  3. Step 3: Cross multiply
    9,129.82x = 12,599.16 × 4,938.07
  4. Step 4: Simplify right side
    9,129.82x = 62,215,534.02
  5. Step 5: Solve for x
    x = 62,215,534.02/9,129.82
  6. Step 6: Final answer
    x = 6,814.54

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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.