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Finding the Fourth Proportional to 7,210.70, 10,752.40 and 6,953.72

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Solution

The fourth proportional to 7,210.70, 10,752.40 and 6,953.72 is: 10,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.70 : 10,752.40 = 6,953.72 : x
  2. Step 2: Convert to fraction form
    7,210.70/10,752.40 = 6,953.72/x
  3. Step 3: Cross multiply
    7,210.70x = 10,752.40 × 6,953.72
  4. Step 4: Simplify right side
    7,210.70x = 74,769,144.16
  5. Step 5: Solve for x
    x = 74,769,144.16/7,210.70
  6. Step 6: Final answer
    x = 10,369.20

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.