Home / 15,015.70-22,492.80-8,428.06

Finding the Fourth Proportional to 15,015.70, 22,492.80 and 8,428.06

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Solution

The fourth proportional to 15,015.70, 22,492.80 and 8,428.06 is: 12,624.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.70 : 22,492.80 = 8,428.06 : x
  2. Step 2: Convert to fraction form
    15,015.70/22,492.80 = 8,428.06/x
  3. Step 3: Cross multiply
    15,015.70x = 22,492.80 × 8,428.06
  4. Step 4: Simplify right side
    15,015.70x = 189,570,667.97
  5. Step 5: Solve for x
    x = 189,570,667.97/15,015.70
  6. Step 6: Final answer
    x = 12,624.83

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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.