Home / 12,886.93-19,329.68-3,526.28

Finding the Fourth Proportional to 12,886.93, 19,329.68 and 3,526.28

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Solution

The fourth proportional to 12,886.93, 19,329.68 and 3,526.28 is: 5,289.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.93 : 19,329.68 = 3,526.28 : x
  2. Step 2: Convert to fraction form
    12,886.93/19,329.68 = 3,526.28/x
  3. Step 3: Cross multiply
    12,886.93x = 19,329.68 × 3,526.28
  4. Step 4: Simplify right side
    12,886.93x = 68,161,803.34
  5. Step 5: Solve for x
    x = 68,161,803.34/12,886.93
  6. Step 6: Final answer
    x = 5,289.22

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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.