Home / 9,869.99-13,615.09-5,890.46

Finding the Fourth Proportional to 9,869.99, 13,615.09 and 5,890.46

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Solution

The fourth proportional to 9,869.99, 13,615.09 and 5,890.46 is: 8,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.99 : 13,615.09 = 5,890.46 : x
  2. Step 2: Convert to fraction form
    9,869.99/13,615.09 = 5,890.46/x
  3. Step 3: Cross multiply
    9,869.99x = 13,615.09 × 5,890.46
  4. Step 4: Simplify right side
    9,869.99x = 80,199,060.24
  5. Step 5: Solve for x
    x = 80,199,060.24/9,869.99
  6. Step 6: Final answer
    x = 8,125.55

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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.