Home / 10,316.70-14,222.94-7,086.42

Finding the Fourth Proportional to 10,316.70, 14,222.94 and 7,086.42

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Solution

The fourth proportional to 10,316.70, 14,222.94 and 7,086.42 is: 9,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.70 : 14,222.94 = 7,086.42 : x
  2. Step 2: Convert to fraction form
    10,316.70/14,222.94 = 7,086.42/x
  3. Step 3: Cross multiply
    10,316.70x = 14,222.94 × 7,086.42
  4. Step 4: Simplify right side
    10,316.70x = 100,789,779.75
  5. Step 5: Solve for x
    x = 100,789,779.75/10,316.70
  6. Step 6: Final answer
    x = 9,769.57

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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.