Home / 10,113.50-15,170.25-2,817.50

Finding the Fourth Proportional to 10,113.50, 15,170.25 and 2,817.50

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Solution

The fourth proportional to 10,113.50, 15,170.25 and 2,817.50 is: 4,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.50 : 15,170.25 = 2,817.50 : x
  2. Step 2: Convert to fraction form
    10,113.50/15,170.25 = 2,817.50/x
  3. Step 3: Cross multiply
    10,113.50x = 15,170.25 × 2,817.50
  4. Step 4: Simplify right side
    10,113.50x = 42,742,179.38
  5. Step 5: Solve for x
    x = 42,742,179.38/10,113.50
  6. Step 6: Final answer
    x = 4,226.25

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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.