Home / 14,168.64-19,551.48-7,881.36

Finding the Fourth Proportional to 14,168.64, 19,551.48 and 7,881.36

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Solution

The fourth proportional to 14,168.64, 19,551.48 and 7,881.36 is: 10,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.64 : 19,551.48 = 7,881.36 : x
  2. Step 2: Convert to fraction form
    14,168.64/19,551.48 = 7,881.36/x
  3. Step 3: Cross multiply
    14,168.64x = 19,551.48 × 7,881.36
  4. Step 4: Simplify right side
    14,168.64x = 154,092,252.41
  5. Step 5: Solve for x
    x = 154,092,252.41/14,168.64
  6. Step 6: Final answer
    x = 10,875.59

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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.