Home / 19,020.87-26,239.95-12,308.66

Finding the Fourth Proportional to 19,020.87, 26,239.95 and 12,308.66

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Solution

The fourth proportional to 19,020.87, 26,239.95 and 12,308.66 is: 16,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.87 : 26,239.95 = 12,308.66 : x
  2. Step 2: Convert to fraction form
    19,020.87/26,239.95 = 12,308.66/x
  3. Step 3: Cross multiply
    19,020.87x = 26,239.95 × 12,308.66
  4. Step 4: Simplify right side
    19,020.87x = 322,978,590.17
  5. Step 5: Solve for x
    x = 322,978,590.17/19,020.87
  6. Step 6: Final answer
    x = 16,980.22

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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.