Home / 13,585.14-18,758.70-8,557.47

Finding the Fourth Proportional to 13,585.14, 18,758.70 and 8,557.47

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Solution

The fourth proportional to 13,585.14, 18,758.70 and 8,557.47 is: 11,816.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.14 : 18,758.70 = 8,557.47 : x
  2. Step 2: Convert to fraction form
    13,585.14/18,758.70 = 8,557.47/x
  3. Step 3: Cross multiply
    13,585.14x = 18,758.70 × 8,557.47
  4. Step 4: Simplify right side
    13,585.14x = 160,527,012.49
  5. Step 5: Solve for x
    x = 160,527,012.49/13,585.14
  6. Step 6: Final answer
    x = 11,816.37

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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.