Home / 10,172.41-15,258.61-2,776.70

Finding the Fourth Proportional to 10,172.41, 15,258.61 and 2,776.70

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Solution

The fourth proportional to 10,172.41, 15,258.61 and 2,776.70 is: 4,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.41 : 15,258.61 = 2,776.70 : x
  2. Step 2: Convert to fraction form
    10,172.41/15,258.61 = 2,776.70/x
  3. Step 3: Cross multiply
    10,172.41x = 15,258.61 × 2,776.70
  4. Step 4: Simplify right side
    10,172.41x = 42,368,582.39
  5. Step 5: Solve for x
    x = 42,368,582.39/10,172.41
  6. Step 6: Final answer
    x = 4,165.05

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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.