Home / 13,527.71-18,667.89-7,559.43

Finding the Fourth Proportional to 13,527.71, 18,667.89 and 7,559.43

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Solution

The fourth proportional to 13,527.71, 18,667.89 and 7,559.43 is: 10,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.71 : 18,667.89 = 7,559.43 : x
  2. Step 2: Convert to fraction form
    13,527.71/18,667.89 = 7,559.43/x
  3. Step 3: Cross multiply
    13,527.71x = 18,667.89 × 7,559.43
  4. Step 4: Simplify right side
    13,527.71x = 141,118,607.70
  5. Step 5: Solve for x
    x = 141,118,607.70/13,527.71
  6. Step 6: Final answer
    x = 10,431.82

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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.