Home / 12,798.02-19,175.81-7,785.23

Finding the Fourth Proportional to 12,798.02, 19,175.81 and 7,785.23

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Solution

The fourth proportional to 12,798.02, 19,175.81 and 7,785.23 is: 11,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.02 : 19,175.81 = 7,785.23 : x
  2. Step 2: Convert to fraction form
    12,798.02/19,175.81 = 7,785.23/x
  3. Step 3: Cross multiply
    12,798.02x = 19,175.81 × 7,785.23
  4. Step 4: Simplify right side
    12,798.02x = 149,287,956.48
  5. Step 5: Solve for x
    x = 149,287,956.48/12,798.02
  6. Step 6: Final answer
    x = 11,664.92

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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.