Home / 13,560.51-18,722.21-9,310.20

Finding the Fourth Proportional to 13,560.51, 18,722.21 and 9,310.20

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Solution

The fourth proportional to 13,560.51, 18,722.21 and 9,310.20 is: 12,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.51 : 18,722.21 = 9,310.20 : x
  2. Step 2: Convert to fraction form
    13,560.51/18,722.21 = 9,310.20/x
  3. Step 3: Cross multiply
    13,560.51x = 18,722.21 × 9,310.20
  4. Step 4: Simplify right side
    13,560.51x = 174,307,472.99
  5. Step 5: Solve for x
    x = 174,307,472.99/13,560.51
  6. Step 6: Final answer
    x = 12,854.05

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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.