Home / 14,816.02-20,430.78-12,698.92

Finding the Fourth Proportional to 14,816.02, 20,430.78 and 12,698.92

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Solution

The fourth proportional to 14,816.02, 20,430.78 and 12,698.92 is: 17,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,816.02 : 20,430.78 = 12,698.92 : x
  2. Step 2: Convert to fraction form
    14,816.02/20,430.78 = 12,698.92/x
  3. Step 3: Cross multiply
    14,816.02x = 20,430.78 × 12,698.92
  4. Step 4: Simplify right side
    14,816.02x = 259,448,840.76
  5. Step 5: Solve for x
    x = 259,448,840.76/14,816.02
  6. Step 6: Final answer
    x = 17,511.37

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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.