Home / 15,814.11-21,823.17-8,740.38

Finding the Fourth Proportional to 15,814.11, 21,823.17 and 8,740.38

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Solution

The fourth proportional to 15,814.11, 21,823.17 and 8,740.38 is: 12,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.11 : 21,823.17 = 8,740.38 : x
  2. Step 2: Convert to fraction form
    15,814.11/21,823.17 = 8,740.38/x
  3. Step 3: Cross multiply
    15,814.11x = 21,823.17 × 8,740.38
  4. Step 4: Simplify right side
    15,814.11x = 190,742,798.60
  5. Step 5: Solve for x
    x = 190,742,798.60/15,814.11
  6. Step 6: Final answer
    x = 12,061.56

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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.