Home / 15,700.68-21,665.70-8,627.49

Finding the Fourth Proportional to 15,700.68, 21,665.70 and 8,627.49

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Solution

The fourth proportional to 15,700.68, 21,665.70 and 8,627.49 is: 11,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.68 : 21,665.70 = 8,627.49 : x
  2. Step 2: Convert to fraction form
    15,700.68/21,665.70 = 8,627.49/x
  3. Step 3: Cross multiply
    15,700.68x = 21,665.70 × 8,627.49
  4. Step 4: Simplify right side
    15,700.68x = 186,920,610.09
  5. Step 5: Solve for x
    x = 186,920,610.09/15,700.68
  6. Step 6: Final answer
    x = 11,905.26

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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.