Home / 10,476.05-15,719.20-4,929.95

Finding the Fourth Proportional to 10,476.05, 15,719.20 and 4,929.95

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Solution

The fourth proportional to 10,476.05, 15,719.20 and 4,929.95 is: 7,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,476.05 : 15,719.20 = 4,929.95 : x
  2. Step 2: Convert to fraction form
    10,476.05/15,719.20 = 4,929.95/x
  3. Step 3: Cross multiply
    10,476.05x = 15,719.20 × 4,929.95
  4. Step 4: Simplify right side
    10,476.05x = 77,494,870.04
  5. Step 5: Solve for x
    x = 77,494,870.04/10,476.05
  6. Step 6: Final answer
    x = 7,397.34

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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.