Home / 15,085.08-20,827.17-9,709.92

Finding the Fourth Proportional to 15,085.08, 20,827.17 and 9,709.92

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Solution

The fourth proportional to 15,085.08, 20,827.17 and 9,709.92 is: 13,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,085.08 : 20,827.17 = 9,709.92 : x
  2. Step 2: Convert to fraction form
    15,085.08/20,827.17 = 9,709.92/x
  3. Step 3: Cross multiply
    15,085.08x = 20,827.17 × 9,709.92
  4. Step 4: Simplify right side
    15,085.08x = 202,230,154.53
  5. Step 5: Solve for x
    x = 202,230,154.53/15,085.08
  6. Step 6: Final answer
    x = 13,405.97

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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.