Home / 13,868.48-19,137.06-7,898.90

Finding the Fourth Proportional to 13,868.48, 19,137.06 and 7,898.90

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Solution

The fourth proportional to 13,868.48, 19,137.06 and 7,898.90 is: 10,899.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.48 : 19,137.06 = 7,898.90 : x
  2. Step 2: Convert to fraction form
    13,868.48/19,137.06 = 7,898.90/x
  3. Step 3: Cross multiply
    13,868.48x = 19,137.06 × 7,898.90
  4. Step 4: Simplify right side
    13,868.48x = 151,161,723.23
  5. Step 5: Solve for x
    x = 151,161,723.23/13,868.48
  6. Step 6: Final answer
    x = 10,899.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.