Home / 10,688.64-16,038.08-3,766.40

Finding the Fourth Proportional to 10,688.64, 16,038.08 and 3,766.40

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Solution

The fourth proportional to 10,688.64, 16,038.08 and 3,766.40 is: 5,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.64 : 16,038.08 = 3,766.40 : x
  2. Step 2: Convert to fraction form
    10,688.64/16,038.08 = 3,766.40/x
  3. Step 3: Cross multiply
    10,688.64x = 16,038.08 × 3,766.40
  4. Step 4: Simplify right side
    10,688.64x = 60,405,824.51
  5. Step 5: Solve for x
    x = 60,405,824.51/10,688.64
  6. Step 6: Final answer
    x = 5,651.40

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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.