Home / 15,673.10-21,617.48-10,001.88

Finding the Fourth Proportional to 15,673.10, 21,617.48 and 10,001.88

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Solution

The fourth proportional to 15,673.10, 21,617.48 and 10,001.88 is: 13,795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673.10 : 21,617.48 = 10,001.88 : x
  2. Step 2: Convert to fraction form
    15,673.10/21,617.48 = 10,001.88/x
  3. Step 3: Cross multiply
    15,673.10x = 21,617.48 × 10,001.88
  4. Step 4: Simplify right side
    15,673.10x = 216,215,465.87
  5. Step 5: Solve for x
    x = 216,215,465.87/15,673.10
  6. Step 6: Final answer
    x = 13,795.33

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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.