Home / 13,587.08-18,749.93-7,618.73

Finding the Fourth Proportional to 13,587.08, 18,749.93 and 7,618.73

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Solution

The fourth proportional to 13,587.08, 18,749.93 and 7,618.73 is: 10,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.08 : 18,749.93 = 7,618.73 : x
  2. Step 2: Convert to fraction form
    13,587.08/18,749.93 = 7,618.73/x
  3. Step 3: Cross multiply
    13,587.08x = 18,749.93 × 7,618.73
  4. Step 4: Simplify right side
    13,587.08x = 142,850,720.11
  5. Step 5: Solve for x
    x = 142,850,720.11/13,587.08
  6. Step 6: Final answer
    x = 10,513.72

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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.