Home / 13,430.48-20,145.73-4,196.48

Finding the Fourth Proportional to 13,430.48, 20,145.73 and 4,196.48

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Solution

The fourth proportional to 13,430.48, 20,145.73 and 4,196.48 is: 6,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.48 : 20,145.73 = 4,196.48 : x
  2. Step 2: Convert to fraction form
    13,430.48/20,145.73 = 4,196.48/x
  3. Step 3: Cross multiply
    13,430.48x = 20,145.73 × 4,196.48
  4. Step 4: Simplify right side
    13,430.48x = 84,541,192.90
  5. Step 5: Solve for x
    x = 84,541,192.90/13,430.48
  6. Step 6: Final answer
    x = 6,294.72

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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.