Home / 12,152.11-18,228.35-4,254.34

Finding the Fourth Proportional to 12,152.11, 18,228.35 and 4,254.34

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Solution

The fourth proportional to 12,152.11, 18,228.35 and 4,254.34 is: 6,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.11 : 18,228.35 = 4,254.34 : x
  2. Step 2: Convert to fraction form
    12,152.11/18,228.35 = 4,254.34/x
  3. Step 3: Cross multiply
    12,152.11x = 18,228.35 × 4,254.34
  4. Step 4: Simplify right side
    12,152.11x = 77,549,598.54
  5. Step 5: Solve for x
    x = 77,549,598.54/12,152.11
  6. Step 6: Final answer
    x = 6,381.57

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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.