Home / 13,747.96-18,984.84-13,011.40

Finding the Fourth Proportional to 13,747.96, 18,984.84 and 13,011.40

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Solution

The fourth proportional to 13,747.96, 18,984.84 and 13,011.40 is: 17,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.96 : 18,984.84 = 13,011.40 : x
  2. Step 2: Convert to fraction form
    13,747.96/18,984.84 = 13,011.40/x
  3. Step 3: Cross multiply
    13,747.96x = 18,984.84 × 13,011.40
  4. Step 4: Simplify right side
    13,747.96x = 247,019,347.18
  5. Step 5: Solve for x
    x = 247,019,347.18/13,747.96
  6. Step 6: Final answer
    x = 17,967.71

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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.