Home / 19,796.90-27,312.18-12,240.81

Finding the Fourth Proportional to 19,796.90, 27,312.18 and 12,240.81

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Solution

The fourth proportional to 19,796.90, 27,312.18 and 12,240.81 is: 16,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,796.90 : 27,312.18 = 12,240.81 : x
  2. Step 2: Convert to fraction form
    19,796.90/27,312.18 = 12,240.81/x
  3. Step 3: Cross multiply
    19,796.90x = 27,312.18 × 12,240.81
  4. Step 4: Simplify right side
    19,796.90x = 334,323,206.07
  5. Step 5: Solve for x
    x = 334,323,206.07/19,796.90
  6. Step 6: Final answer
    x = 16,887.66

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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.