Home / 11,464.92-15,817.98-6,428.40

Finding the Fourth Proportional to 11,464.92, 15,817.98 and 6,428.40

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Solution

The fourth proportional to 11,464.92, 15,817.98 and 6,428.40 is: 8,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,464.92 : 15,817.98 = 6,428.40 : x
  2. Step 2: Convert to fraction form
    11,464.92/15,817.98 = 6,428.40/x
  3. Step 3: Cross multiply
    11,464.92x = 15,817.98 × 6,428.40
  4. Step 4: Simplify right side
    11,464.92x = 101,684,302.63
  5. Step 5: Solve for x
    x = 101,684,302.63/11,464.92
  6. Step 6: Final answer
    x = 8,869.17

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1.5x scale

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.