Home / 13,343.58-19,966.10-10,981.62

Finding the Fourth Proportional to 13,343.58, 19,966.10 and 10,981.62

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Solution

The fourth proportional to 13,343.58, 19,966.10 and 10,981.62 is: 16,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.58 : 19,966.10 = 10,981.62 : x
  2. Step 2: Convert to fraction form
    13,343.58/19,966.10 = 10,981.62/x
  3. Step 3: Cross multiply
    13,343.58x = 19,966.10 × 10,981.62
  4. Step 4: Simplify right side
    13,343.58x = 219,260,068.17
  5. Step 5: Solve for x
    x = 219,260,068.17/13,343.58
  6. Step 6: Final answer
    x = 16,431.88

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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.