Home / 14,918.63-20,556.81-10,666.22

Finding the Fourth Proportional to 14,918.63, 20,556.81 and 10,666.22

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Solution

The fourth proportional to 14,918.63, 20,556.81 and 10,666.22 is: 14,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.63 : 20,556.81 = 10,666.22 : x
  2. Step 2: Convert to fraction form
    14,918.63/20,556.81 = 10,666.22/x
  3. Step 3: Cross multiply
    14,918.63x = 20,556.81 × 10,666.22
  4. Step 4: Simplify right side
    14,918.63x = 219,263,355.17
  5. Step 5: Solve for x
    x = 219,263,355.17/14,918.63
  6. Step 6: Final answer
    x = 14,697.29

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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.