Home / 13,530.32-18,659.70-11,269.16

Finding the Fourth Proportional to 13,530.32, 18,659.70 and 11,269.16

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Solution

The fourth proportional to 13,530.32, 18,659.70 and 11,269.16 is: 15,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.32 : 18,659.70 = 11,269.16 : x
  2. Step 2: Convert to fraction form
    13,530.32/18,659.70 = 11,269.16/x
  3. Step 3: Cross multiply
    13,530.32x = 18,659.70 × 11,269.16
  4. Step 4: Simplify right side
    13,530.32x = 210,279,247.79
  5. Step 5: Solve for x
    x = 210,279,247.79/13,530.32
  6. Step 6: Final answer
    x = 15,541.34

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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.