Home / 13,585.73-18,749.21-7,617.79

Finding the Fourth Proportional to 13,585.73, 18,749.21 and 7,617.79

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Solution

The fourth proportional to 13,585.73, 18,749.21 and 7,617.79 is: 10,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.73 : 18,749.21 = 7,617.79 : x
  2. Step 2: Convert to fraction form
    13,585.73/18,749.21 = 7,617.79/x
  3. Step 3: Cross multiply
    13,585.73x = 18,749.21 × 7,617.79
  4. Step 4: Simplify right side
    13,585.73x = 142,827,459.48
  5. Step 5: Solve for x
    x = 142,827,459.48/13,585.73
  6. Step 6: Final answer
    x = 10,513.05

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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.