Home / 13,845.15-19,106.36-7,557.63

Finding the Fourth Proportional to 13,845.15, 19,106.36 and 7,557.63

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Solution

The fourth proportional to 13,845.15, 19,106.36 and 7,557.63 is: 10,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.15 : 19,106.36 = 7,557.63 : x
  2. Step 2: Convert to fraction form
    13,845.15/19,106.36 = 7,557.63/x
  3. Step 3: Cross multiply
    13,845.15x = 19,106.36 × 7,557.63
  4. Step 4: Simplify right side
    13,845.15x = 144,398,761.74
  5. Step 5: Solve for x
    x = 144,398,761.74/13,845.15
  6. Step 6: Final answer
    x = 10,429.56

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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.