Home / 15,141.15-20,894.63-8,426.67

Finding the Fourth Proportional to 15,141.15, 20,894.63 and 8,426.67

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Solution

The fourth proportional to 15,141.15, 20,894.63 and 8,426.67 is: 11,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.15 : 20,894.63 = 8,426.67 : x
  2. Step 2: Convert to fraction form
    15,141.15/20,894.63 = 8,426.67/x
  3. Step 3: Cross multiply
    15,141.15x = 20,894.63 × 8,426.67
  4. Step 4: Simplify right side
    15,141.15x = 176,072,172.85
  5. Step 5: Solve for x
    x = 176,072,172.85/15,141.15
  6. Step 6: Final answer
    x = 11,628.72

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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.