Home / 9,866.40-13,615.32-5,885.46

Finding the Fourth Proportional to 9,866.40, 13,615.32 and 5,885.46

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Solution

The fourth proportional to 9,866.40, 13,615.32 and 5,885.46 is: 8,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.40 : 13,615.32 = 5,885.46 : x
  2. Step 2: Convert to fraction form
    9,866.40/13,615.32 = 5,885.46/x
  3. Step 3: Cross multiply
    9,866.40x = 13,615.32 × 5,885.46
  4. Step 4: Simplify right side
    9,866.40x = 80,132,421.25
  5. Step 5: Solve for x
    x = 80,132,421.25/9,866.40
  6. Step 6: Final answer
    x = 8,121.75

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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.