Home / 19,790.51-29,686.67-11,018.81

Finding the Fourth Proportional to 19,790.51, 29,686.67 and 11,018.81

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Solution

The fourth proportional to 19,790.51, 29,686.67 and 11,018.81 is: 16,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.51 : 29,686.67 = 11,018.81 : x
  2. Step 2: Convert to fraction form
    19,790.51/29,686.67 = 11,018.81/x
  3. Step 3: Cross multiply
    19,790.51x = 29,686.67 × 11,018.81
  4. Step 4: Simplify right side
    19,790.51x = 327,111,776.26
  5. Step 5: Solve for x
    x = 327,111,776.26/19,790.51
  6. Step 6: Final answer
    x = 16,528.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.