Home / 10,203.32-14,087.31-6,428.18

Finding the Fourth Proportional to 10,203.32, 14,087.31 and 6,428.18

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Solution

The fourth proportional to 10,203.32, 14,087.31 and 6,428.18 is: 8,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.32 : 14,087.31 = 6,428.18 : x
  2. Step 2: Convert to fraction form
    10,203.32/14,087.31 = 6,428.18/x
  3. Step 3: Cross multiply
    10,203.32x = 14,087.31 × 6,428.18
  4. Step 4: Simplify right side
    10,203.32x = 90,555,764.40
  5. Step 5: Solve for x
    x = 90,555,764.40/10,203.32
  6. Step 6: Final answer
    x = 8,875.13

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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.