Home / 15,010.37-20,715.29-9,966.69

Finding the Fourth Proportional to 15,010.37, 20,715.29 and 9,966.69

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Solution

The fourth proportional to 15,010.37, 20,715.29 and 9,966.69 is: 13,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.37 : 20,715.29 = 9,966.69 : x
  2. Step 2: Convert to fraction form
    15,010.37/20,715.29 = 9,966.69/x
  3. Step 3: Cross multiply
    15,010.37x = 20,715.29 × 9,966.69
  4. Step 4: Simplify right side
    15,010.37x = 206,462,873.69
  5. Step 5: Solve for x
    x = 206,462,873.69/15,010.37
  6. Step 6: Final answer
    x = 13,754.68

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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.