Home / 15,457.87-23,170.61-7,143.34

Finding the Fourth Proportional to 15,457.87, 23,170.61 and 7,143.34

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Solution

The fourth proportional to 15,457.87, 23,170.61 and 7,143.34 is: 10,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.87 : 23,170.61 = 7,143.34 : x
  2. Step 2: Convert to fraction form
    15,457.87/23,170.61 = 7,143.34/x
  3. Step 3: Cross multiply
    15,457.87x = 23,170.61 × 7,143.34
  4. Step 4: Simplify right side
    15,457.87x = 165,515,505.17
  5. Step 5: Solve for x
    x = 165,515,505.17/15,457.87
  6. Step 6: Final answer
    x = 10,707.53

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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.