Home / 13,867.19-19,134.51-7,898.98

Finding the Fourth Proportional to 13,867.19, 19,134.51 and 7,898.98

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Solution

The fourth proportional to 13,867.19, 19,134.51 and 7,898.98 is: 10,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.19 : 19,134.51 = 7,898.98 : x
  2. Step 2: Convert to fraction form
    13,867.19/19,134.51 = 7,898.98/x
  3. Step 3: Cross multiply
    13,867.19x = 19,134.51 × 7,898.98
  4. Step 4: Simplify right side
    13,867.19x = 151,143,111.80
  5. Step 5: Solve for x
    x = 151,143,111.80/13,867.19
  6. Step 6: Final answer
    x = 10,899.33

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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.