Home / 13,550.19-18,699.66-7,581.72

Finding the Fourth Proportional to 13,550.19, 18,699.66 and 7,581.72

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Solution

The fourth proportional to 13,550.19, 18,699.66 and 7,581.72 is: 10,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.19 : 18,699.66 = 7,581.72 : x
  2. Step 2: Convert to fraction form
    13,550.19/18,699.66 = 7,581.72/x
  3. Step 3: Cross multiply
    13,550.19x = 18,699.66 × 7,581.72
  4. Step 4: Simplify right side
    13,550.19x = 141,775,586.22
  5. Step 5: Solve for x
    x = 141,775,586.22/13,550.19
  6. Step 6: Final answer
    x = 10,463.00

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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.