Home / 10,887.40-16,333.08-7,192.72

Finding the Fourth Proportional to 10,887.40, 16,333.08 and 7,192.72

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Solution

The fourth proportional to 10,887.40, 16,333.08 and 7,192.72 is: 10,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.40 : 16,333.08 = 7,192.72 : x
  2. Step 2: Convert to fraction form
    10,887.40/16,333.08 = 7,192.72/x
  3. Step 3: Cross multiply
    10,887.40x = 16,333.08 × 7,192.72
  4. Step 4: Simplify right side
    10,887.40x = 117,479,271.18
  5. Step 5: Solve for x
    x = 117,479,271.18/10,887.40
  6. Step 6: Final answer
    x = 10,790.39

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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.