Home / 13,746.18-20,647.67-13,147.23

Finding the Fourth Proportional to 13,746.18, 20,647.67 and 13,147.23

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Solution

The fourth proportional to 13,746.18, 20,647.67 and 13,147.23 is: 19,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.18 : 20,647.67 = 13,147.23 : x
  2. Step 2: Convert to fraction form
    13,746.18/20,647.67 = 13,147.23/x
  3. Step 3: Cross multiply
    13,746.18x = 20,647.67 × 13,147.23
  4. Step 4: Simplify right side
    13,746.18x = 271,459,600.72
  5. Step 5: Solve for x
    x = 271,459,600.72/13,746.18
  6. Step 6: Final answer
    x = 19,748.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.