Home / 19,551.26-26,973.67-12,840.53

Finding the Fourth Proportional to 19,551.26, 26,973.67 and 12,840.53

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Solution

The fourth proportional to 19,551.26, 26,973.67 and 12,840.53 is: 17,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.26 : 26,973.67 = 12,840.53 : x
  2. Step 2: Convert to fraction form
    19,551.26/26,973.67 = 12,840.53/x
  3. Step 3: Cross multiply
    19,551.26x = 26,973.67 × 12,840.53
  4. Step 4: Simplify right side
    19,551.26x = 346,356,019.77
  5. Step 5: Solve for x
    x = 346,356,019.77/19,551.26
  6. Step 6: Final answer
    x = 17,715.28

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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.