Home / 13,533.90-20,299.54-4,171.40

Finding the Fourth Proportional to 13,533.90, 20,299.54 and 4,171.40

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Solution

The fourth proportional to 13,533.90, 20,299.54 and 4,171.40 is: 6,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.90 : 20,299.54 = 4,171.40 : x
  2. Step 2: Convert to fraction form
    13,533.90/20,299.54 = 4,171.40/x
  3. Step 3: Cross multiply
    13,533.90x = 20,299.54 × 4,171.40
  4. Step 4: Simplify right side
    13,533.90x = 84,677,501.16
  5. Step 5: Solve for x
    x = 84,677,501.16/13,533.90
  6. Step 6: Final answer
    x = 6,256.70

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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.