Home / 19,169.04-26,445.24-12,457.20

Finding the Fourth Proportional to 19,169.04, 26,445.24 and 12,457.20

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Solution

The fourth proportional to 19,169.04, 26,445.24 and 12,457.20 is: 17,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.04 : 26,445.24 = 12,457.20 : x
  2. Step 2: Convert to fraction form
    19,169.04/26,445.24 = 12,457.20/x
  3. Step 3: Cross multiply
    19,169.04x = 26,445.24 × 12,457.20
  4. Step 4: Simplify right side
    19,169.04x = 329,433,643.73
  5. Step 5: Solve for x
    x = 329,433,643.73/19,169.04
  6. Step 6: Final answer
    x = 17,185.71

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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.