Home / 19,111.77-28,636.50-11,700.69

Finding the Fourth Proportional to 19,111.77, 28,636.50 and 11,700.69

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Solution

The fourth proportional to 19,111.77, 28,636.50 and 11,700.69 is: 17,531.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.77 : 28,636.50 = 11,700.69 : x
  2. Step 2: Convert to fraction form
    19,111.77/28,636.50 = 11,700.69/x
  3. Step 3: Cross multiply
    19,111.77x = 28,636.50 × 11,700.69
  4. Step 4: Simplify right side
    19,111.77x = 335,066,809.19
  5. Step 5: Solve for x
    x = 335,066,809.19/19,111.77
  6. Step 6: Final answer
    x = 17,531.96

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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.