Home / 13,349.72-18,416.48-8,635.52

Finding the Fourth Proportional to 13,349.72, 18,416.48 and 8,635.52

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Solution

The fourth proportional to 13,349.72, 18,416.48 and 8,635.52 is: 11,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.72 : 18,416.48 = 8,635.52 : x
  2. Step 2: Convert to fraction form
    13,349.72/18,416.48 = 8,635.52/x
  3. Step 3: Cross multiply
    13,349.72x = 18,416.48 × 8,635.52
  4. Step 4: Simplify right side
    13,349.72x = 159,035,881.37
  5. Step 5: Solve for x
    x = 159,035,881.37/13,349.72
  6. Step 6: Final answer
    x = 11,913.05

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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.