Home / 8,436.78-11,638.10-5,250.60

Finding the Fourth Proportional to 8,436.78, 11,638.10 and 5,250.60

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Solution

The fourth proportional to 8,436.78, 11,638.10 and 5,250.60 is: 7,242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.78 : 11,638.10 = 5,250.60 : x
  2. Step 2: Convert to fraction form
    8,436.78/11,638.10 = 5,250.60/x
  3. Step 3: Cross multiply
    8,436.78x = 11,638.10 × 5,250.60
  4. Step 4: Simplify right side
    8,436.78x = 61,106,981.61
  5. Step 5: Solve for x
    x = 61,106,981.61/8,436.78
  6. Step 6: Final answer
    x = 7,242.93

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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.