Home / 15,135.04-20,877.72-9,083.67

Finding the Fourth Proportional to 15,135.04, 20,877.72 and 9,083.67

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Solution

The fourth proportional to 15,135.04, 20,877.72 and 9,083.67 is: 12,530.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.04 : 20,877.72 = 9,083.67 : x
  2. Step 2: Convert to fraction form
    15,135.04/20,877.72 = 9,083.67/x
  3. Step 3: Cross multiply
    15,135.04x = 20,877.72 × 9,083.67
  4. Step 4: Simplify right side
    15,135.04x = 189,646,318.83
  5. Step 5: Solve for x
    x = 189,646,318.83/15,135.04
  6. Step 6: Final answer
    x = 12,530.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.