Home / 13,345.30-20,017.56-3,484.58

Finding the Fourth Proportional to 13,345.30, 20,017.56 and 3,484.58

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Solution

The fourth proportional to 13,345.30, 20,017.56 and 3,484.58 is: 5,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.30 : 20,017.56 = 3,484.58 : x
  2. Step 2: Convert to fraction form
    13,345.30/20,017.56 = 3,484.58/x
  3. Step 3: Cross multiply
    13,345.30x = 20,017.56 × 3,484.58
  4. Step 4: Simplify right side
    13,345.30x = 69,752,801.74
  5. Step 5: Solve for x
    x = 69,752,801.74/13,345.30
  6. Step 6: Final answer
    x = 5,226.77

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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.