Home / 13,848.09-19,111.07-7,880.61

Finding the Fourth Proportional to 13,848.09, 19,111.07 and 7,880.61

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Solution

The fourth proportional to 13,848.09, 19,111.07 and 7,880.61 is: 10,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.09 : 19,111.07 = 7,880.61 : x
  2. Step 2: Convert to fraction form
    13,848.09/19,111.07 = 7,880.61/x
  3. Step 3: Cross multiply
    13,848.09x = 19,111.07 × 7,880.61
  4. Step 4: Simplify right side
    13,848.09x = 150,606,889.35
  5. Step 5: Solve for x
    x = 150,606,889.35/13,848.09
  6. Step 6: Final answer
    x = 10,875.64

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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.