Home / 19,178.55-28,771.38-7,491.06

Finding the Fourth Proportional to 19,178.55, 28,771.38 and 7,491.06

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Solution

The fourth proportional to 19,178.55, 28,771.38 and 7,491.06 is: 11,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.55 : 28,771.38 = 7,491.06 : x
  2. Step 2: Convert to fraction form
    19,178.55/28,771.38 = 7,491.06/x
  3. Step 3: Cross multiply
    19,178.55x = 28,771.38 × 7,491.06
  4. Step 4: Simplify right side
    19,178.55x = 215,528,133.86
  5. Step 5: Solve for x
    x = 215,528,133.86/19,178.55
  6. Step 6: Final answer
    x = 11,237.98

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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.