Home / 13,345.76-18,416.94-8,043.50

Finding the Fourth Proportional to 13,345.76, 18,416.94 and 8,043.50

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Solution

The fourth proportional to 13,345.76, 18,416.94 and 8,043.50 is: 11,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.76 : 18,416.94 = 8,043.50 : x
  2. Step 2: Convert to fraction form
    13,345.76/18,416.94 = 8,043.50/x
  3. Step 3: Cross multiply
    13,345.76x = 18,416.94 × 8,043.50
  4. Step 4: Simplify right side
    13,345.76x = 148,136,564.81
  5. Step 5: Solve for x
    x = 148,136,564.81/13,345.76
  6. Step 6: Final answer
    x = 11,099.90

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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.