Home / 13,346.08-18,416.39-7,679.32

Finding the Fourth Proportional to 13,346.08, 18,416.39 and 7,679.32

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Solution

The fourth proportional to 13,346.08, 18,416.39 and 7,679.32 is: 10,596.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.08 : 18,416.39 = 7,679.32 : x
  2. Step 2: Convert to fraction form
    13,346.08/18,416.39 = 7,679.32/x
  3. Step 3: Cross multiply
    13,346.08x = 18,416.39 × 7,679.32
  4. Step 4: Simplify right side
    13,346.08x = 141,425,267.62
  5. Step 5: Solve for x
    x = 141,425,267.62/13,346.08
  6. Step 6: Final answer
    x = 10,596.77

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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.