Home / 15,790.27-21,798.45-9,823.86

Finding the Fourth Proportional to 15,790.27, 21,798.45 and 9,823.86

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Solution

The fourth proportional to 15,790.27, 21,798.45 and 9,823.86 is: 13,561.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.27 : 21,798.45 = 9,823.86 : x
  2. Step 2: Convert to fraction form
    15,790.27/21,798.45 = 9,823.86/x
  3. Step 3: Cross multiply
    15,790.27x = 21,798.45 × 9,823.86
  4. Step 4: Simplify right side
    15,790.27x = 214,144,921.02
  5. Step 5: Solve for x
    x = 214,144,921.02/15,790.27
  6. Step 6: Final answer
    x = 13,561.83

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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.