Home / 13,316.36-19,953.81-7,755.98

Finding the Fourth Proportional to 13,316.36, 19,953.81 and 7,755.98

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Solution

The fourth proportional to 13,316.36, 19,953.81 and 7,755.98 is: 11,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.36 : 19,953.81 = 7,755.98 : x
  2. Step 2: Convert to fraction form
    13,316.36/19,953.81 = 7,755.98/x
  3. Step 3: Cross multiply
    13,316.36x = 19,953.81 × 7,755.98
  4. Step 4: Simplify right side
    13,316.36x = 154,761,251.51
  5. Step 5: Solve for x
    x = 154,761,251.51/13,316.36
  6. Step 6: Final answer
    x = 11,621.89

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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.