Home / 11,809.40-17,703.16-6,611.63

Finding the Fourth Proportional to 11,809.40, 17,703.16 and 6,611.63

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Solution

The fourth proportional to 11,809.40, 17,703.16 and 6,611.63 is: 9,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.40 : 17,703.16 = 6,611.63 : x
  2. Step 2: Convert to fraction form
    11,809.40/17,703.16 = 6,611.63/x
  3. Step 3: Cross multiply
    11,809.40x = 17,703.16 × 6,611.63
  4. Step 4: Simplify right side
    11,809.40x = 117,046,638.71
  5. Step 5: Solve for x
    x = 117,046,638.71/11,809.40
  6. Step 6: Final answer
    x = 9,911.32

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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.