Home / 10,688.45-16,035.64-4,451.40

Finding the Fourth Proportional to 10,688.45, 16,035.64 and 4,451.40

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Solution

The fourth proportional to 10,688.45, 16,035.64 and 4,451.40 is: 6,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.45 : 16,035.64 = 4,451.40 : x
  2. Step 2: Convert to fraction form
    10,688.45/16,035.64 = 4,451.40/x
  3. Step 3: Cross multiply
    10,688.45x = 16,035.64 × 4,451.40
  4. Step 4: Simplify right side
    10,688.45x = 71,381,036.77
  5. Step 5: Solve for x
    x = 71,381,036.77/10,688.45
  6. Step 6: Final answer
    x = 6,678.34

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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.