Home / 13,572.03-20,359.95-4,212.81

Finding the Fourth Proportional to 13,572.03, 20,359.95 and 4,212.81

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Solution

The fourth proportional to 13,572.03, 20,359.95 and 4,212.81 is: 6,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.03 : 20,359.95 = 4,212.81 : x
  2. Step 2: Convert to fraction form
    13,572.03/20,359.95 = 4,212.81/x
  3. Step 3: Cross multiply
    13,572.03x = 20,359.95 × 4,212.81
  4. Step 4: Simplify right side
    13,572.03x = 85,772,600.96
  5. Step 5: Solve for x
    x = 85,772,600.96/13,572.03
  6. Step 6: Final answer
    x = 6,319.81

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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.