Home / 13,527.90-20,294.73-7,985.37

Finding the Fourth Proportional to 13,527.90, 20,294.73 and 7,985.37

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Solution

The fourth proportional to 13,527.90, 20,294.73 and 7,985.37 is: 11,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.90 : 20,294.73 = 7,985.37 : x
  2. Step 2: Convert to fraction form
    13,527.90/20,294.73 = 7,985.37/x
  3. Step 3: Cross multiply
    13,527.90x = 20,294.73 × 7,985.37
  4. Step 4: Simplify right side
    13,527.90x = 162,060,928.10
  5. Step 5: Solve for x
    x = 162,060,928.10/13,527.90
  6. Step 6: Final answer
    x = 11,979.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.