Home / 10,218.56-14,100.56-6,240.64

Finding the Fourth Proportional to 10,218.56, 14,100.56 and 6,240.64

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Solution

The fourth proportional to 10,218.56, 14,100.56 and 6,240.64 is: 8,611.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.56 : 14,100.56 = 6,240.64 : x
  2. Step 2: Convert to fraction form
    10,218.56/14,100.56 = 6,240.64/x
  3. Step 3: Cross multiply
    10,218.56x = 14,100.56 × 6,240.64
  4. Step 4: Simplify right side
    10,218.56x = 87,996,518.76
  5. Step 5: Solve for x
    x = 87,996,518.76/10,218.56
  6. Step 6: Final answer
    x = 8,611.44

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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.