Home / 13,857.64-19,123.60-7,570

Finding the Fourth Proportional to 13,857.64, 19,123.60 and 7,570

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Solution

The fourth proportional to 13,857.64, 19,123.60 and 7,570 is: 10,446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.64 : 19,123.60 = 7,570 : x
  2. Step 2: Convert to fraction form
    13,857.64/19,123.60 = 7,570/x
  3. Step 3: Cross multiply
    13,857.64x = 19,123.60 × 7,570
  4. Step 4: Simplify right side
    13,857.64x = 144,765,652
  5. Step 5: Solve for x
    x = 144,765,652/13,857.64
  6. Step 6: Final answer
    x = 10,446.63

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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.