Home / 13,736.25-18,956.16-7,448.76

Finding the Fourth Proportional to 13,736.25, 18,956.16 and 7,448.76

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Solution

The fourth proportional to 13,736.25, 18,956.16 and 7,448.76 is: 10,279.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.25 : 18,956.16 = 7,448.76 : x
  2. Step 2: Convert to fraction form
    13,736.25/18,956.16 = 7,448.76/x
  3. Step 3: Cross multiply
    13,736.25x = 18,956.16 × 7,448.76
  4. Step 4: Simplify right side
    13,736.25x = 141,199,886.36
  5. Step 5: Solve for x
    x = 141,199,886.36/13,736.25
  6. Step 6: Final answer
    x = 10,279.36

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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.