Home / 15,812.64-23,718.51-4,125.86

Finding the Fourth Proportional to 15,812.64, 23,718.51 and 4,125.86

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Solution

The fourth proportional to 15,812.64, 23,718.51 and 4,125.86 is: 6,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.64 : 23,718.51 = 4,125.86 : x
  2. Step 2: Convert to fraction form
    15,812.64/23,718.51 = 4,125.86/x
  3. Step 3: Cross multiply
    15,812.64x = 23,718.51 × 4,125.86
  4. Step 4: Simplify right side
    15,812.64x = 97,859,251.67
  5. Step 5: Solve for x
    x = 97,859,251.67/15,812.64
  6. Step 6: Final answer
    x = 6,188.67

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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.