Home / 10,135.52-13,986.35-5,659.68

Finding the Fourth Proportional to 10,135.52, 13,986.35 and 5,659.68

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Solution

The fourth proportional to 10,135.52, 13,986.35 and 5,659.68 is: 7,809.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.52 : 13,986.35 = 5,659.68 : x
  2. Step 2: Convert to fraction form
    10,135.52/13,986.35 = 5,659.68/x
  3. Step 3: Cross multiply
    10,135.52x = 13,986.35 × 5,659.68
  4. Step 4: Simplify right side
    10,135.52x = 79,158,237.07
  5. Step 5: Solve for x
    x = 79,158,237.07/10,135.52
  6. Step 6: Final answer
    x = 7,809.99

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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.