Home / 6,444.40-9,615.26-5,509.66

Finding the Fourth Proportional to 6,444.40, 9,615.26 and 5,509.66

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Solution

The fourth proportional to 6,444.40, 9,615.26 and 5,509.66 is: 8,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,444.40 : 9,615.26 = 5,509.66 : x
  2. Step 2: Convert to fraction form
    6,444.40/9,615.26 = 5,509.66/x
  3. Step 3: Cross multiply
    6,444.40x = 9,615.26 × 5,509.66
  4. Step 4: Simplify right side
    6,444.40x = 52,976,813.41
  5. Step 5: Solve for x
    x = 52,976,813.41/6,444.40
  6. Step 6: Final answer
    x = 8,220.60

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.