Home / 14,246.40-21,369.60-7,685.40

Finding the Fourth Proportional to 14,246.40, 21,369.60 and 7,685.40

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Solution

The fourth proportional to 14,246.40, 21,369.60 and 7,685.40 is: 11,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.40 : 21,369.60 = 7,685.40 : x
  2. Step 2: Convert to fraction form
    14,246.40/21,369.60 = 7,685.40/x
  3. Step 3: Cross multiply
    14,246.40x = 21,369.60 × 7,685.40
  4. Step 4: Simplify right side
    14,246.40x = 164,233,923.84
  5. Step 5: Solve for x
    x = 164,233,923.84/14,246.40
  6. Step 6: Final answer
    x = 11,528.10

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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.