Home / 12,457.14-17,190.27-7,424.70

Finding the Fourth Proportional to 12,457.14, 17,190.27 and 7,424.70

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Solution

The fourth proportional to 12,457.14, 17,190.27 and 7,424.70 is: 10,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.14 : 17,190.27 = 7,424.70 : x
  2. Step 2: Convert to fraction form
    12,457.14/17,190.27 = 7,424.70/x
  3. Step 3: Cross multiply
    12,457.14x = 17,190.27 × 7,424.70
  4. Step 4: Simplify right side
    12,457.14x = 127,632,597.67
  5. Step 5: Solve for x
    x = 127,632,597.67/12,457.14
  6. Step 6: Final answer
    x = 10,245.74

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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.