Home / 10,819.76-14,931.29-6,343.50

Finding the Fourth Proportional to 10,819.76, 14,931.29 and 6,343.50

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Solution

The fourth proportional to 10,819.76, 14,931.29 and 6,343.50 is: 8,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.76 : 14,931.29 = 6,343.50 : x
  2. Step 2: Convert to fraction form
    10,819.76/14,931.29 = 6,343.50/x
  3. Step 3: Cross multiply
    10,819.76x = 14,931.29 × 6,343.50
  4. Step 4: Simplify right side
    10,819.76x = 94,716,606.40
  5. Step 5: Solve for x
    x = 94,716,606.40/10,819.76
  6. Step 6: Final answer
    x = 8,754.04

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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.