Home / 7,376.72-10,190.32-7,107.28

Finding the Fourth Proportional to 7,376.72, 10,190.32 and 7,107.28

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Solution

The fourth proportional to 7,376.72, 10,190.32 and 7,107.28 is: 9,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.72 : 10,190.32 = 7,107.28 : x
  2. Step 2: Convert to fraction form
    7,376.72/10,190.32 = 7,107.28/x
  3. Step 3: Cross multiply
    7,376.72x = 10,190.32 × 7,107.28
  4. Step 4: Simplify right side
    7,376.72x = 72,425,457.53
  5. Step 5: Solve for x
    x = 72,425,457.53/7,376.72
  6. Step 6: Final answer
    x = 9,818.11

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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.