Home / 13,733.76-20,501.16-12,706.56

Finding the Fourth Proportional to 13,733.76, 20,501.16 and 12,706.56

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Solution

The fourth proportional to 13,733.76, 20,501.16 and 12,706.56 is: 18,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.76 : 20,501.16 = 12,706.56 : x
  2. Step 2: Convert to fraction form
    13,733.76/20,501.16 = 12,706.56/x
  3. Step 3: Cross multiply
    13,733.76x = 20,501.16 × 12,706.56
  4. Step 4: Simplify right side
    13,733.76x = 260,499,219.61
  5. Step 5: Solve for x
    x = 260,499,219.61/13,733.76
  6. Step 6: Final answer
    x = 18,967.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.