Home / 9,111.60-13,665.48-4,429.60

Finding the Fourth Proportional to 9,111.60, 13,665.48 and 4,429.60

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Solution

The fourth proportional to 9,111.60, 13,665.48 and 4,429.60 is: 6,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.60 : 13,665.48 = 4,429.60 : x
  2. Step 2: Convert to fraction form
    9,111.60/13,665.48 = 4,429.60/x
  3. Step 3: Cross multiply
    9,111.60x = 13,665.48 × 4,429.60
  4. Step 4: Simplify right side
    9,111.60x = 60,532,610.21
  5. Step 5: Solve for x
    x = 60,532,610.21/9,111.60
  6. Step 6: Final answer
    x = 6,643.47

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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.