Home / 19,698.28-27,188.02-12,526.81

Finding the Fourth Proportional to 19,698.28, 27,188.02 and 12,526.81

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Solution

The fourth proportional to 19,698.28, 27,188.02 and 12,526.81 is: 17,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.28 : 27,188.02 = 12,526.81 : x
  2. Step 2: Convert to fraction form
    19,698.28/27,188.02 = 12,526.81/x
  3. Step 3: Cross multiply
    19,698.28x = 27,188.02 × 12,526.81
  4. Step 4: Simplify right side
    19,698.28x = 340,579,160.82
  5. Step 5: Solve for x
    x = 340,579,160.82/19,698.28
  6. Step 6: Final answer
    x = 17,289.79

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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.