Home / 10,457.46-15,684.12-5,186.97

Finding the Fourth Proportional to 10,457.46, 15,684.12 and 5,186.97

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Solution

The fourth proportional to 10,457.46, 15,684.12 and 5,186.97 is: 7,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,457.46 : 15,684.12 = 5,186.97 : x
  2. Step 2: Convert to fraction form
    10,457.46/15,684.12 = 5,186.97/x
  3. Step 3: Cross multiply
    10,457.46x = 15,684.12 × 5,186.97
  4. Step 4: Simplify right side
    10,457.46x = 81,353,059.92
  5. Step 5: Solve for x
    x = 81,353,059.92/10,457.46
  6. Step 6: Final answer
    x = 7,779.43

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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.