Home / 12,457.10-17,170.44-9,100.46

Finding the Fourth Proportional to 12,457.10, 17,170.44 and 9,100.46

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Solution

The fourth proportional to 12,457.10, 17,170.44 and 9,100.46 is: 12,543.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.10 : 17,170.44 = 9,100.46 : x
  2. Step 2: Convert to fraction form
    12,457.10/17,170.44 = 9,100.46/x
  3. Step 3: Cross multiply
    12,457.10x = 17,170.44 × 9,100.46
  4. Step 4: Simplify right side
    12,457.10x = 156,258,902.40
  5. Step 5: Solve for x
    x = 156,258,902.40/12,457.10
  6. Step 6: Final answer
    x = 12,543.76

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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.