Home / 12,924.74-19,386.70-5,432.28

Finding the Fourth Proportional to 12,924.74, 19,386.70 and 5,432.28

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Solution

The fourth proportional to 12,924.74, 19,386.70 and 5,432.28 is: 8,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.74 : 19,386.70 = 5,432.28 : x
  2. Step 2: Convert to fraction form
    12,924.74/19,386.70 = 5,432.28/x
  3. Step 3: Cross multiply
    12,924.74x = 19,386.70 × 5,432.28
  4. Step 4: Simplify right side
    12,924.74x = 105,313,982.68
  5. Step 5: Solve for x
    x = 105,313,982.68/12,924.74
  6. Step 6: Final answer
    x = 8,148.25

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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.