Home / 15,423.81-23,156.91-7,933.56

Finding the Fourth Proportional to 15,423.81, 23,156.91 and 7,933.56

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Solution

The fourth proportional to 15,423.81, 23,156.91 and 7,933.56 is: 11,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.81 : 23,156.91 = 7,933.56 : x
  2. Step 2: Convert to fraction form
    15,423.81/23,156.91 = 7,933.56/x
  3. Step 3: Cross multiply
    15,423.81x = 23,156.91 × 7,933.56
  4. Step 4: Simplify right side
    15,423.81x = 183,716,645.12
  5. Step 5: Solve for x
    x = 183,716,645.12/15,423.81
  6. Step 6: Final answer
    x = 11,911.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.