Home / 15,412.20-23,118.30-5,554.50

Finding the Fourth Proportional to 15,412.20, 23,118.30 and 5,554.50

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Solution

The fourth proportional to 15,412.20, 23,118.30 and 5,554.50 is: 8,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.20 : 23,118.30 = 5,554.50 : x
  2. Step 2: Convert to fraction form
    15,412.20/23,118.30 = 5,554.50/x
  3. Step 3: Cross multiply
    15,412.20x = 23,118.30 × 5,554.50
  4. Step 4: Simplify right side
    15,412.20x = 128,410,597.35
  5. Step 5: Solve for x
    x = 128,410,597.35/15,412.20
  6. Step 6: Final answer
    x = 8,331.75

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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.