Home / 13,434.60-18,533.79-8,953.99

Finding the Fourth Proportional to 13,434.60, 18,533.79 and 8,953.99

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Solution

The fourth proportional to 13,434.60, 18,533.79 and 8,953.99 is: 12,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.60 : 18,533.79 = 8,953.99 : x
  2. Step 2: Convert to fraction form
    13,434.60/18,533.79 = 8,953.99/x
  3. Step 3: Cross multiply
    13,434.60x = 18,533.79 × 8,953.99
  4. Step 4: Simplify right side
    13,434.60x = 165,951,370.32
  5. Step 5: Solve for x
    x = 165,951,370.32/13,434.60
  6. Step 6: Final answer
    x = 12,352.54

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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.