Home / 13,579.76-18,749.16-8,483.01

Finding the Fourth Proportional to 13,579.76, 18,749.16 and 8,483.01

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Solution

The fourth proportional to 13,579.76, 18,749.16 and 8,483.01 is: 11,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.76 : 18,749.16 = 8,483.01 : x
  2. Step 2: Convert to fraction form
    13,579.76/18,749.16 = 8,483.01/x
  3. Step 3: Cross multiply
    13,579.76x = 18,749.16 × 8,483.01
  4. Step 4: Simplify right side
    13,579.76x = 159,049,311.77
  5. Step 5: Solve for x
    x = 159,049,311.77/13,579.76
  6. Step 6: Final answer
    x = 11,712.24

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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.