Home / 13,557.90-20,336.85-8,907.30

Finding the Fourth Proportional to 13,557.90, 20,336.85 and 8,907.30

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Solution

The fourth proportional to 13,557.90, 20,336.85 and 8,907.30 is: 13,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.90 : 20,336.85 = 8,907.30 : x
  2. Step 2: Convert to fraction form
    13,557.90/20,336.85 = 8,907.30/x
  3. Step 3: Cross multiply
    13,557.90x = 20,336.85 × 8,907.30
  4. Step 4: Simplify right side
    13,557.90x = 181,146,424.01
  5. Step 5: Solve for x
    x = 181,146,424.01/13,557.90
  6. Step 6: Final answer
    x = 13,360.95

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Similar ratio
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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.