Home / 10,218.48-14,097.42-6,440.64

Finding the Fourth Proportional to 10,218.48, 14,097.42 and 6,440.64

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Solution

The fourth proportional to 10,218.48, 14,097.42 and 6,440.64 is: 8,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.48 : 14,097.42 = 6,440.64 : x
  2. Step 2: Convert to fraction form
    10,218.48/14,097.42 = 6,440.64/x
  3. Step 3: Cross multiply
    10,218.48x = 14,097.42 × 6,440.64
  4. Step 4: Simplify right side
    10,218.48x = 90,796,407.15
  5. Step 5: Solve for x
    x = 90,796,407.15/10,218.48
  6. Step 6: Final answer
    x = 8,885.51

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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.