Home / 10,279.45-14,187.21-7,459.63

Finding the Fourth Proportional to 10,279.45, 14,187.21 and 7,459.63

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Solution

The fourth proportional to 10,279.45, 14,187.21 and 7,459.63 is: 10,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.45 : 14,187.21 = 7,459.63 : x
  2. Step 2: Convert to fraction form
    10,279.45/14,187.21 = 7,459.63/x
  3. Step 3: Cross multiply
    10,279.45x = 14,187.21 × 7,459.63
  4. Step 4: Simplify right side
    10,279.45x = 105,831,337.33
  5. Step 5: Solve for x
    x = 105,831,337.33/10,279.45
  6. Step 6: Final answer
    x = 10,295.43

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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.