Home / 13,148.93-18,135.24-8,433.65

Finding the Fourth Proportional to 13,148.93, 18,135.24 and 8,433.65

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Solution

The fourth proportional to 13,148.93, 18,135.24 and 8,433.65 is: 11,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.93 : 18,135.24 = 8,433.65 : x
  2. Step 2: Convert to fraction form
    13,148.93/18,135.24 = 8,433.65/x
  3. Step 3: Cross multiply
    13,148.93x = 18,135.24 × 8,433.65
  4. Step 4: Simplify right side
    13,148.93x = 152,946,266.83
  5. Step 5: Solve for x
    x = 152,946,266.83/13,148.93
  6. Step 6: Final answer
    x = 11,631.84

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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.