Home / 13,459.17-18,572.31-8,153.67

Finding the Fourth Proportional to 13,459.17, 18,572.31 and 8,153.67

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Solution

The fourth proportional to 13,459.17, 18,572.31 and 8,153.67 is: 11,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.17 : 18,572.31 = 8,153.67 : x
  2. Step 2: Convert to fraction form
    13,459.17/18,572.31 = 8,153.67/x
  3. Step 3: Cross multiply
    13,459.17x = 18,572.31 × 8,153.67
  4. Step 4: Simplify right side
    13,459.17x = 151,432,486.88
  5. Step 5: Solve for x
    x = 151,432,486.88/13,459.17
  6. Step 6: Final answer
    x = 11,251.25

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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.