Home / 10,639.65-14,682.83-6,663.09

Finding the Fourth Proportional to 10,639.65, 14,682.83 and 6,663.09

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Solution

The fourth proportional to 10,639.65, 14,682.83 and 6,663.09 is: 9,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.65 : 14,682.83 = 6,663.09 : x
  2. Step 2: Convert to fraction form
    10,639.65/14,682.83 = 6,663.09/x
  3. Step 3: Cross multiply
    10,639.65x = 14,682.83 × 6,663.09
  4. Step 4: Simplify right side
    10,639.65x = 97,832,984.43
  5. Step 5: Solve for x
    x = 97,832,984.43/10,639.65
  6. Step 6: Final answer
    x = 9,195.13

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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.