Home / 13,864.76-19,134.70-7,898.36

Finding the Fourth Proportional to 13,864.76, 19,134.70 and 7,898.36

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Solution

The fourth proportional to 13,864.76, 19,134.70 and 7,898.36 is: 10,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.76 : 19,134.70 = 7,898.36 : x
  2. Step 2: Convert to fraction form
    13,864.76/19,134.70 = 7,898.36/x
  3. Step 3: Cross multiply
    13,864.76x = 19,134.70 × 7,898.36
  4. Step 4: Simplify right side
    13,864.76x = 151,132,749.09
  5. Step 5: Solve for x
    x = 151,132,749.09/13,864.76
  6. Step 6: Final answer
    x = 10,900.50

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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.