Home / 13,376.52-18,459.63-7,408.44

Finding the Fourth Proportional to 13,376.52, 18,459.63 and 7,408.44

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Solution

The fourth proportional to 13,376.52, 18,459.63 and 7,408.44 is: 10,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.52 : 18,459.63 = 7,408.44 : x
  2. Step 2: Convert to fraction form
    13,376.52/18,459.63 = 7,408.44/x
  3. Step 3: Cross multiply
    13,376.52x = 18,459.63 × 7,408.44
  4. Step 4: Simplify right side
    13,376.52x = 136,757,061.28
  5. Step 5: Solve for x
    x = 136,757,061.28/13,376.52
  6. Step 6: Final answer
    x = 10,223.67

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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.