Home / 9,019.20-13,492.35-7,800.15

Finding the Fourth Proportional to 9,019.20, 13,492.35 and 7,800.15

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Solution

The fourth proportional to 9,019.20, 13,492.35 and 7,800.15 is: 11,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019.20 : 13,492.35 = 7,800.15 : x
  2. Step 2: Convert to fraction form
    9,019.20/13,492.35 = 7,800.15/x
  3. Step 3: Cross multiply
    9,019.20x = 13,492.35 × 7,800.15
  4. Step 4: Simplify right side
    9,019.20x = 105,242,353.85
  5. Step 5: Solve for x
    x = 105,242,353.85/9,019.20
  6. Step 6: Final answer
    x = 11,668.70

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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.