Home / 15,923.81-23,890.71-12,425.76

Finding the Fourth Proportional to 15,923.81, 23,890.71 and 12,425.76

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Solution

The fourth proportional to 15,923.81, 23,890.71 and 12,425.76 is: 18,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.81 : 23,890.71 = 12,425.76 : x
  2. Step 2: Convert to fraction form
    15,923.81/23,890.71 = 12,425.76/x
  3. Step 3: Cross multiply
    15,923.81x = 23,890.71 × 12,425.76
  4. Step 4: Simplify right side
    15,923.81x = 296,860,228.69
  5. Step 5: Solve for x
    x = 296,860,228.69/15,923.81
  6. Step 6: Final answer
    x = 18,642.54

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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.