Home / 13,256.79-19,888.56-3,897.14

Finding the Fourth Proportional to 13,256.79, 19,888.56 and 3,897.14

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Solution

The fourth proportional to 13,256.79, 19,888.56 and 3,897.14 is: 5,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.79 : 19,888.56 = 3,897.14 : x
  2. Step 2: Convert to fraction form
    13,256.79/19,888.56 = 3,897.14/x
  3. Step 3: Cross multiply
    13,256.79x = 19,888.56 × 3,897.14
  4. Step 4: Simplify right side
    13,256.79x = 77,508,383.79
  5. Step 5: Solve for x
    x = 77,508,383.79/13,256.79
  6. Step 6: Final answer
    x = 5,846.70

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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.