Home / 13,526.46-18,678.39-8,499.39

Finding the Fourth Proportional to 13,526.46, 18,678.39 and 8,499.39

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Solution

The fourth proportional to 13,526.46, 18,678.39 and 8,499.39 is: 11,736.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.46 : 18,678.39 = 8,499.39 : x
  2. Step 2: Convert to fraction form
    13,526.46/18,678.39 = 8,499.39/x
  3. Step 3: Cross multiply
    13,526.46x = 18,678.39 × 8,499.39
  4. Step 4: Simplify right side
    13,526.46x = 158,754,921.18
  5. Step 5: Solve for x
    x = 158,754,921.18/13,526.46
  6. Step 6: Final answer
    x = 11,736.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.