Home / 13,548.16-20,330.90-5,756.98

Finding the Fourth Proportional to 13,548.16, 20,330.90 and 5,756.98

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Solution

The fourth proportional to 13,548.16, 20,330.90 and 5,756.98 is: 8,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.16 : 20,330.90 = 5,756.98 : x
  2. Step 2: Convert to fraction form
    13,548.16/20,330.90 = 5,756.98/x
  3. Step 3: Cross multiply
    13,548.16x = 20,330.90 × 5,756.98
  4. Step 4: Simplify right side
    13,548.16x = 117,044,584.68
  5. Step 5: Solve for x
    x = 117,044,584.68/13,548.16
  6. Step 6: Final answer
    x = 8,639.15

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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.