Home / 13,313.58-18,366.93-8,005.35

Finding the Fourth Proportional to 13,313.58, 18,366.93 and 8,005.35

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Solution

The fourth proportional to 13,313.58, 18,366.93 and 8,005.35 is: 11,043.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.58 : 18,366.93 = 8,005.35 : x
  2. Step 2: Convert to fraction form
    13,313.58/18,366.93 = 8,005.35/x
  3. Step 3: Cross multiply
    13,313.58x = 18,366.93 × 8,005.35
  4. Step 4: Simplify right side
    13,313.58x = 147,033,703.08
  5. Step 5: Solve for x
    x = 147,033,703.08/13,313.58
  6. Step 6: Final answer
    x = 11,043.89

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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.