Home / 9,910.40-13,669.44-8,666.24

Finding the Fourth Proportional to 9,910.40, 13,669.44 and 8,666.24

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Solution

The fourth proportional to 9,910.40, 13,669.44 and 8,666.24 is: 11,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.40 : 13,669.44 = 8,666.24 : x
  2. Step 2: Convert to fraction form
    9,910.40/13,669.44 = 8,666.24/x
  3. Step 3: Cross multiply
    9,910.40x = 13,669.44 × 8,666.24
  4. Step 4: Simplify right side
    9,910.40x = 118,462,647.71
  5. Step 5: Solve for x
    x = 118,462,647.71/9,910.40
  6. Step 6: Final answer
    x = 11,953.37

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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.