Home / 19,117.16-28,643.38-11,706.15

Finding the Fourth Proportional to 19,117.16, 28,643.38 and 11,706.15

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Solution

The fourth proportional to 19,117.16, 28,643.38 and 11,706.15 is: 17,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.16 : 28,643.38 = 11,706.15 : x
  2. Step 2: Convert to fraction form
    19,117.16/28,643.38 = 11,706.15/x
  3. Step 3: Cross multiply
    19,117.16x = 28,643.38 × 11,706.15
  4. Step 4: Simplify right side
    19,117.16x = 335,303,702.79
  5. Step 5: Solve for x
    x = 335,303,702.79/19,117.16
  6. Step 6: Final answer
    x = 17,539.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.