Home / 11,170.42-15,417.08-6,457.44

Finding the Fourth Proportional to 11,170.42, 15,417.08 and 6,457.44

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Solution

The fourth proportional to 11,170.42, 15,417.08 and 6,457.44 is: 8,912.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.42 : 15,417.08 = 6,457.44 : x
  2. Step 2: Convert to fraction form
    11,170.42/15,417.08 = 6,457.44/x
  3. Step 3: Cross multiply
    11,170.42x = 15,417.08 × 6,457.44
  4. Step 4: Simplify right side
    11,170.42x = 99,554,869.08
  5. Step 5: Solve for x
    x = 99,554,869.08/11,170.42
  6. Step 6: Final answer
    x = 8,912.37

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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.