Home / 12,040.66-18,088.72-8,539.32

Finding the Fourth Proportional to 12,040.66, 18,088.72 and 8,539.32

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Solution

The fourth proportional to 12,040.66, 18,088.72 and 8,539.32 is: 12,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.66 : 18,088.72 = 8,539.32 : x
  2. Step 2: Convert to fraction form
    12,040.66/18,088.72 = 8,539.32/x
  3. Step 3: Cross multiply
    12,040.66x = 18,088.72 × 8,539.32
  4. Step 4: Simplify right side
    12,040.66x = 154,465,368.47
  5. Step 5: Solve for x
    x = 154,465,368.47/12,040.66
  6. Step 6: Final answer
    x = 12,828.65

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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.