Home / 13,123.87-19,685.80-4,800.28

Finding the Fourth Proportional to 13,123.87, 19,685.80 and 4,800.28

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Solution

The fourth proportional to 13,123.87, 19,685.80 and 4,800.28 is: 7,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.87 : 19,685.80 = 4,800.28 : x
  2. Step 2: Convert to fraction form
    13,123.87/19,685.80 = 4,800.28/x
  3. Step 3: Cross multiply
    13,123.87x = 19,685.80 × 4,800.28
  4. Step 4: Simplify right side
    13,123.87x = 94,497,352.02
  5. Step 5: Solve for x
    x = 94,497,352.02/13,123.87
  6. Step 6: Final answer
    x = 7,200.42

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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.