Home / 13,857.60-19,128-10,332.48

Finding the Fourth Proportional to 13,857.60, 19,128 and 10,332.48

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Solution

The fourth proportional to 13,857.60, 19,128 and 10,332.48 is: 14,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.60 : 19,128 = 10,332.48 : x
  2. Step 2: Convert to fraction form
    13,857.60/19,128 = 10,332.48/x
  3. Step 3: Cross multiply
    13,857.60x = 19,128 × 10,332.48
  4. Step 4: Simplify right side
    13,857.60x = 197,639,677.44
  5. Step 5: Solve for x
    x = 197,639,677.44/13,857.60
  6. Step 6: Final answer
    x = 14,262.19

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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.