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Finding the Fourth Proportional to 8,124.40, 11,212.40 and 4,587.53

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Solution

The fourth proportional to 8,124.40, 11,212.40 and 4,587.53 is: 6,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.40 : 11,212.40 = 4,587.53 : x
  2. Step 2: Convert to fraction form
    8,124.40/11,212.40 = 4,587.53/x
  3. Step 3: Cross multiply
    8,124.40x = 11,212.40 × 4,587.53
  4. Step 4: Simplify right side
    8,124.40x = 51,437,221.37
  5. Step 5: Solve for x
    x = 51,437,221.37/8,124.40
  6. Step 6: Final answer
    x = 6,331.20

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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.