Home / 13,344.02-18,416.58-7,678.67

Finding the Fourth Proportional to 13,344.02, 18,416.58 and 7,678.67

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Solution

The fourth proportional to 13,344.02, 18,416.58 and 7,678.67 is: 10,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.02 : 18,416.58 = 7,678.67 : x
  2. Step 2: Convert to fraction form
    13,344.02/18,416.58 = 7,678.67/x
  3. Step 3: Cross multiply
    13,344.02x = 18,416.58 × 7,678.67
  4. Step 4: Simplify right side
    13,344.02x = 141,414,748.27
  5. Step 5: Solve for x
    x = 141,414,748.27/13,344.02
  6. Step 6: Final answer
    x = 10,597.62

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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.