Home / 13,816.49-19,073.57-9,570.78

Finding the Fourth Proportional to 13,816.49, 19,073.57 and 9,570.78

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Solution

The fourth proportional to 13,816.49, 19,073.57 and 9,570.78 is: 13,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.49 : 19,073.57 = 9,570.78 : x
  2. Step 2: Convert to fraction form
    13,816.49/19,073.57 = 9,570.78/x
  3. Step 3: Cross multiply
    13,816.49x = 19,073.57 × 9,570.78
  4. Step 4: Simplify right side
    13,816.49x = 182,548,894.43
  5. Step 5: Solve for x
    x = 182,548,894.43/13,816.49
  6. Step 6: Final answer
    x = 13,212.40

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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.