Home / 19,531.04-26,949.94-11,870.32

Finding the Fourth Proportional to 19,531.04, 26,949.94 and 11,870.32

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Solution

The fourth proportional to 19,531.04, 26,949.94 and 11,870.32 is: 16,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.04 : 26,949.94 = 11,870.32 : x
  2. Step 2: Convert to fraction form
    19,531.04/26,949.94 = 11,870.32/x
  3. Step 3: Cross multiply
    19,531.04x = 26,949.94 × 11,870.32
  4. Step 4: Simplify right side
    19,531.04x = 319,904,411.78
  5. Step 5: Solve for x
    x = 319,904,411.78/19,531.04
  6. Step 6: Final answer
    x = 16,379.28

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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.