Home / 12,293.47-18,440.21-3,528.46

Finding the Fourth Proportional to 12,293.47, 18,440.21 and 3,528.46

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Solution

The fourth proportional to 12,293.47, 18,440.21 and 3,528.46 is: 5,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.47 : 18,440.21 = 3,528.46 : x
  2. Step 2: Convert to fraction form
    12,293.47/18,440.21 = 3,528.46/x
  3. Step 3: Cross multiply
    12,293.47x = 18,440.21 × 3,528.46
  4. Step 4: Simplify right side
    12,293.47x = 65,065,543.38
  5. Step 5: Solve for x
    x = 65,065,543.38/12,293.47
  6. Step 6: Final answer
    x = 5,292.69

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Half scale
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Double scale
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Similar ratio
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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.