Home / 18,284.40-27,442.80-9,405.99

Finding the Fourth Proportional to 18,284.40, 27,442.80 and 9,405.99

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Solution

The fourth proportional to 18,284.40, 27,442.80 and 9,405.99 is: 14,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,284.40 : 27,442.80 = 9,405.99 : x
  2. Step 2: Convert to fraction form
    18,284.40/27,442.80 = 9,405.99/x
  3. Step 3: Cross multiply
    18,284.40x = 27,442.80 × 9,405.99
  4. Step 4: Simplify right side
    18,284.40x = 258,126,702.37
  5. Step 5: Solve for x
    x = 258,126,702.37/18,284.40
  6. Step 6: Final answer
    x = 14,117.32

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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.