Home / 19,123.80-28,674.56-7,423.35

Finding the Fourth Proportional to 19,123.80, 28,674.56 and 7,423.35

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Solution

The fourth proportional to 19,123.80, 28,674.56 and 7,423.35 is: 11,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.80 : 28,674.56 = 7,423.35 : x
  2. Step 2: Convert to fraction form
    19,123.80/28,674.56 = 7,423.35/x
  3. Step 3: Cross multiply
    19,123.80x = 28,674.56 × 7,423.35
  4. Step 4: Simplify right side
    19,123.80x = 212,861,257.86
  5. Step 5: Solve for x
    x = 212,861,257.86/19,123.80
  6. Step 6: Final answer
    x = 11,130.70

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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.