Home / 10,135.77-13,985.76-5,659.30

Finding the Fourth Proportional to 10,135.77, 13,985.76 and 5,659.30

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Solution

The fourth proportional to 10,135.77, 13,985.76 and 5,659.30 is: 7,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.77 : 13,985.76 = 5,659.30 : x
  2. Step 2: Convert to fraction form
    10,135.77/13,985.76 = 5,659.30/x
  3. Step 3: Cross multiply
    10,135.77x = 13,985.76 × 5,659.30
  4. Step 4: Simplify right side
    10,135.77x = 79,149,611.57
  5. Step 5: Solve for x
    x = 79,149,611.57/10,135.77
  6. Step 6: Final answer
    x = 7,808.94

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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.