Home / 13,888.72-19,160.36-8,299.76

Finding the Fourth Proportional to 13,888.72, 19,160.36 and 8,299.76

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Solution

The fourth proportional to 13,888.72, 19,160.36 and 8,299.76 is: 11,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.72 : 19,160.36 = 8,299.76 : x
  2. Step 2: Convert to fraction form
    13,888.72/19,160.36 = 8,299.76/x
  3. Step 3: Cross multiply
    13,888.72x = 19,160.36 × 8,299.76
  4. Step 4: Simplify right side
    13,888.72x = 159,026,389.51
  5. Step 5: Solve for x
    x = 159,026,389.51/13,888.72
  6. Step 6: Final answer
    x = 11,450.04

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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.