Home / 13,641.48-20,442.98-10,855.76

Finding the Fourth Proportional to 13,641.48, 20,442.98 and 10,855.76

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Solution

The fourth proportional to 13,641.48, 20,442.98 and 10,855.76 is: 16,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.48 : 20,442.98 = 10,855.76 : x
  2. Step 2: Convert to fraction form
    13,641.48/20,442.98 = 10,855.76/x
  3. Step 3: Cross multiply
    13,641.48x = 20,442.98 × 10,855.76
  4. Step 4: Simplify right side
    13,641.48x = 221,924,009.49
  5. Step 5: Solve for x
    x = 221,924,009.49/13,641.48
  6. Step 6: Final answer
    x = 16,268.32

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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.