Home / 10,949.23-15,096.10-7,166.40

Finding the Fourth Proportional to 10,949.23, 15,096.10 and 7,166.40

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Solution

The fourth proportional to 10,949.23, 15,096.10 and 7,166.40 is: 9,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.23 : 15,096.10 = 7,166.40 : x
  2. Step 2: Convert to fraction form
    10,949.23/15,096.10 = 7,166.40/x
  3. Step 3: Cross multiply
    10,949.23x = 15,096.10 × 7,166.40
  4. Step 4: Simplify right side
    10,949.23x = 108,184,615.56
  5. Step 5: Solve for x
    x = 108,184,615.56/10,949.23
  6. Step 6: Final answer
    x = 9,880.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.