Home / 9,130.53-12,600.09-4,938.78

Finding the Fourth Proportional to 9,130.53, 12,600.09 and 4,938.78

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Solution

The fourth proportional to 9,130.53, 12,600.09 and 4,938.78 is: 6,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.53 : 12,600.09 = 4,938.78 : x
  2. Step 2: Convert to fraction form
    9,130.53/12,600.09 = 4,938.78/x
  3. Step 3: Cross multiply
    9,130.53x = 12,600.09 × 4,938.78
  4. Step 4: Simplify right side
    9,130.53x = 62,229,072.49
  5. Step 5: Solve for x
    x = 62,229,072.49/9,130.53
  6. Step 6: Final answer
    x = 6,815.49

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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.