Home / 13,705.77-20,559.22-4,345.58

Finding the Fourth Proportional to 13,705.77, 20,559.22 and 4,345.58

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Solution

The fourth proportional to 13,705.77, 20,559.22 and 4,345.58 is: 6,518.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.77 : 20,559.22 = 4,345.58 : x
  2. Step 2: Convert to fraction form
    13,705.77/20,559.22 = 4,345.58/x
  3. Step 3: Cross multiply
    13,705.77x = 20,559.22 × 4,345.58
  4. Step 4: Simplify right side
    13,705.77x = 89,341,775.78
  5. Step 5: Solve for x
    x = 89,341,775.78/13,705.77
  6. Step 6: Final answer
    x = 6,518.55

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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.