Home / 13,430.71-20,146.04-3,569.99

Finding the Fourth Proportional to 13,430.71, 20,146.04 and 3,569.99

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Solution

The fourth proportional to 13,430.71, 20,146.04 and 3,569.99 is: 5,354.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.71 : 20,146.04 = 3,569.99 : x
  2. Step 2: Convert to fraction form
    13,430.71/20,146.04 = 3,569.99/x
  3. Step 3: Cross multiply
    13,430.71x = 20,146.04 × 3,569.99
  4. Step 4: Simplify right side
    13,430.71x = 71,921,100.61
  5. Step 5: Solve for x
    x = 71,921,100.61/13,430.71
  6. Step 6: Final answer
    x = 5,354.97

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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.