Home / 13,905.48-20,856.60-5,585.16

Finding the Fourth Proportional to 13,905.48, 20,856.60 and 5,585.16

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Solution

The fourth proportional to 13,905.48, 20,856.60 and 5,585.16 is: 8,377.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.48 : 20,856.60 = 5,585.16 : x
  2. Step 2: Convert to fraction form
    13,905.48/20,856.60 = 5,585.16/x
  3. Step 3: Cross multiply
    13,905.48x = 20,856.60 × 5,585.16
  4. Step 4: Simplify right side
    13,905.48x = 116,487,448.06
  5. Step 5: Solve for x
    x = 116,487,448.06/13,905.48
  6. Step 6: Final answer
    x = 8,377.09

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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.