Home / 13,454.28-18,567.51-11,212.40

Finding the Fourth Proportional to 13,454.28, 18,567.51 and 11,212.40

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Solution

The fourth proportional to 13,454.28, 18,567.51 and 11,212.40 is: 15,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.28 : 18,567.51 = 11,212.40 : x
  2. Step 2: Convert to fraction form
    13,454.28/18,567.51 = 11,212.40/x
  3. Step 3: Cross multiply
    13,454.28x = 18,567.51 × 11,212.40
  4. Step 4: Simplify right side
    13,454.28x = 208,186,256.29
  5. Step 5: Solve for x
    x = 208,186,256.29/13,454.28
  6. Step 6: Final answer
    x = 15,473.61

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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.