Home / 13,020.66-19,417.18-11,585.44

Finding the Fourth Proportional to 13,020.66, 19,417.18 and 11,585.44

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Solution

The fourth proportional to 13,020.66, 19,417.18 and 11,585.44 is: 17,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.66 : 19,417.18 = 11,585.44 : x
  2. Step 2: Convert to fraction form
    13,020.66/19,417.18 = 11,585.44/x
  3. Step 3: Cross multiply
    13,020.66x = 19,417.18 × 11,585.44
  4. Step 4: Simplify right side
    13,020.66x = 224,956,544.65
  5. Step 5: Solve for x
    x = 224,956,544.65/13,020.66
  6. Step 6: Final answer
    x = 17,276.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.