Home / 7,617.09-10,515.42-7,210.11

Finding the Fourth Proportional to 7,617.09, 10,515.42 and 7,210.11

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Solution

The fourth proportional to 7,617.09, 10,515.42 and 7,210.11 is: 9,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.09 : 10,515.42 = 7,210.11 : x
  2. Step 2: Convert to fraction form
    7,617.09/10,515.42 = 7,210.11/x
  3. Step 3: Cross multiply
    7,617.09x = 10,515.42 × 7,210.11
  4. Step 4: Simplify right side
    7,617.09x = 75,817,334.90
  5. Step 5: Solve for x
    x = 75,817,334.90/7,617.09
  6. Step 6: Final answer
    x = 9,953.58

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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.