Home / 13,123.43-19,688.25-5,226.40

Finding the Fourth Proportional to 13,123.43, 19,688.25 and 5,226.40

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Solution

The fourth proportional to 13,123.43, 19,688.25 and 5,226.40 is: 7,840.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.43 : 19,688.25 = 5,226.40 : x
  2. Step 2: Convert to fraction form
    13,123.43/19,688.25 = 5,226.40/x
  3. Step 3: Cross multiply
    13,123.43x = 19,688.25 × 5,226.40
  4. Step 4: Simplify right side
    13,123.43x = 102,898,669.80
  5. Step 5: Solve for x
    x = 102,898,669.80/13,123.43
  6. Step 6: Final answer
    x = 7,840.84

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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.