Home / 13,449.19-18,558.87-7,783.96

Finding the Fourth Proportional to 13,449.19, 18,558.87 and 7,783.96

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Solution

The fourth proportional to 13,449.19, 18,558.87 and 7,783.96 is: 10,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.19 : 18,558.87 = 7,783.96 : x
  2. Step 2: Convert to fraction form
    13,449.19/18,558.87 = 7,783.96/x
  3. Step 3: Cross multiply
    13,449.19x = 18,558.87 × 7,783.96
  4. Step 4: Simplify right side
    13,449.19x = 144,461,501.73
  5. Step 5: Solve for x
    x = 144,461,501.73/13,449.19
  6. Step 6: Final answer
    x = 10,741.28

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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.