Home / 13,560.01-18,721.51-9,309.70

Finding the Fourth Proportional to 13,560.01, 18,721.51 and 9,309.70

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Solution

The fourth proportional to 13,560.01, 18,721.51 and 9,309.70 is: 12,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.01 : 18,721.51 = 9,309.70 : x
  2. Step 2: Convert to fraction form
    13,560.01/18,721.51 = 9,309.70/x
  3. Step 3: Cross multiply
    13,560.01x = 18,721.51 × 9,309.70
  4. Step 4: Simplify right side
    13,560.01x = 174,291,694.14
  5. Step 5: Solve for x
    x = 174,291,694.14/13,560.01
  6. Step 6: Final answer
    x = 12,853.36

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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.