Home / 10,172.54-15,258.60-2,777.64

Finding the Fourth Proportional to 10,172.54, 15,258.60 and 2,777.64

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Solution

The fourth proportional to 10,172.54, 15,258.60 and 2,777.64 is: 4,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.54 : 15,258.60 = 2,777.64 : x
  2. Step 2: Convert to fraction form
    10,172.54/15,258.60 = 2,777.64/x
  3. Step 3: Cross multiply
    10,172.54x = 15,258.60 × 2,777.64
  4. Step 4: Simplify right side
    10,172.54x = 42,382,897.70
  5. Step 5: Solve for x
    x = 42,382,897.70/10,172.54
  6. Step 6: Final answer
    x = 4,166.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.