Home / 13,520.36-18,656.10-7,933.16

Finding the Fourth Proportional to 13,520.36, 18,656.10 and 7,933.16

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Solution

The fourth proportional to 13,520.36, 18,656.10 and 7,933.16 is: 10,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.36 : 18,656.10 = 7,933.16 : x
  2. Step 2: Convert to fraction form
    13,520.36/18,656.10 = 7,933.16/x
  3. Step 3: Cross multiply
    13,520.36x = 18,656.10 × 7,933.16
  4. Step 4: Simplify right side
    13,520.36x = 148,001,826.28
  5. Step 5: Solve for x
    x = 148,001,826.28/13,520.36
  6. Step 6: Final answer
    x = 10,946.59

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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.