Home / 13,953.98-19,256.48-7,666.36

Finding the Fourth Proportional to 13,953.98, 19,256.48 and 7,666.36

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Solution

The fourth proportional to 13,953.98, 19,256.48 and 7,666.36 is: 10,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.98 : 19,256.48 = 7,666.36 : x
  2. Step 2: Convert to fraction form
    13,953.98/19,256.48 = 7,666.36/x
  3. Step 3: Cross multiply
    13,953.98x = 19,256.48 × 7,666.36
  4. Step 4: Simplify right side
    13,953.98x = 147,627,108.01
  5. Step 5: Solve for x
    x = 147,627,108.01/13,953.98
  6. Step 6: Final answer
    x = 10,579.57

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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.