Home / 7,935.30-10,918.53-6,513.75

Finding the Fourth Proportional to 7,935.30, 10,918.53 and 6,513.75

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Solution

The fourth proportional to 7,935.30, 10,918.53 and 6,513.75 is: 8,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.30 : 10,918.53 = 6,513.75 : x
  2. Step 2: Convert to fraction form
    7,935.30/10,918.53 = 6,513.75/x
  3. Step 3: Cross multiply
    7,935.30x = 10,918.53 × 6,513.75
  4. Step 4: Simplify right side
    7,935.30x = 71,120,574.79
  5. Step 5: Solve for x
    x = 71,120,574.79/7,935.30
  6. Step 6: Final answer
    x = 8,962.56

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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.