Home / 10,006.40-15,008.28-2,611.36

Finding the Fourth Proportional to 10,006.40, 15,008.28 and 2,611.36

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Solution

The fourth proportional to 10,006.40, 15,008.28 and 2,611.36 is: 3,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,006.40 : 15,008.28 = 2,611.36 : x
  2. Step 2: Convert to fraction form
    10,006.40/15,008.28 = 2,611.36/x
  3. Step 3: Cross multiply
    10,006.40x = 15,008.28 × 2,611.36
  4. Step 4: Simplify right side
    10,006.40x = 39,192,022.06
  5. Step 5: Solve for x
    x = 39,192,022.06/10,006.40
  6. Step 6: Final answer
    x = 3,916.70

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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.