Home / 10,457.73-15,681.99-4,912.65

Finding the Fourth Proportional to 10,457.73, 15,681.99 and 4,912.65

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Solution

The fourth proportional to 10,457.73, 15,681.99 and 4,912.65 is: 7,366.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,457.73 : 15,681.99 = 4,912.65 : x
  2. Step 2: Convert to fraction form
    10,457.73/15,681.99 = 4,912.65/x
  3. Step 3: Cross multiply
    10,457.73x = 15,681.99 × 4,912.65
  4. Step 4: Simplify right side
    10,457.73x = 77,040,128.17
  5. Step 5: Solve for x
    x = 77,040,128.17/10,457.73
  6. Step 6: Final answer
    x = 7,366.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.