Home / 10,172.93-15,258.53-3,152.78

Finding the Fourth Proportional to 10,172.93, 15,258.53 and 3,152.78

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Solution

The fourth proportional to 10,172.93, 15,258.53 and 3,152.78 is: 4,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.93 : 15,258.53 = 3,152.78 : x
  2. Step 2: Convert to fraction form
    10,172.93/15,258.53 = 3,152.78/x
  3. Step 3: Cross multiply
    10,172.93x = 15,258.53 × 3,152.78
  4. Step 4: Simplify right side
    10,172.93x = 48,106,810.60
  5. Step 5: Solve for x
    x = 48,106,810.60/10,172.93
  6. Step 6: Final answer
    x = 4,728.91

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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.