Home / 13,572.06-20,355.93-8,305.23

Finding the Fourth Proportional to 13,572.06, 20,355.93 and 8,305.23

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Solution

The fourth proportional to 13,572.06, 20,355.93 and 8,305.23 is: 12,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.06 : 20,355.93 = 8,305.23 : x
  2. Step 2: Convert to fraction form
    13,572.06/20,355.93 = 8,305.23/x
  3. Step 3: Cross multiply
    13,572.06x = 20,355.93 × 8,305.23
  4. Step 4: Simplify right side
    13,572.06x = 169,060,680.51
  5. Step 5: Solve for x
    x = 169,060,680.51/13,572.06
  6. Step 6: Final answer
    x = 12,456.52

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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.