Home / 13,953.48-19,256.58-7,983.78

Finding the Fourth Proportional to 13,953.48, 19,256.58 and 7,983.78

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Solution

The fourth proportional to 13,953.48, 19,256.58 and 7,983.78 is: 11,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.48 : 19,256.58 = 7,983.78 : x
  2. Step 2: Convert to fraction form
    13,953.48/19,256.58 = 7,983.78/x
  3. Step 3: Cross multiply
    13,953.48x = 19,256.58 × 7,983.78
  4. Step 4: Simplify right side
    13,953.48x = 153,740,298.27
  5. Step 5: Solve for x
    x = 153,740,298.27/13,953.48
  6. Step 6: Final answer
    x = 11,018.06

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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.