Home / 19,166.64-26,451-12,888.24

Finding the Fourth Proportional to 19,166.64, 26,451 and 12,888.24

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Solution

The fourth proportional to 19,166.64, 26,451 and 12,888.24 is: 17,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.64 : 26,451 = 12,888.24 : x
  2. Step 2: Convert to fraction form
    19,166.64/26,451 = 12,888.24/x
  3. Step 3: Cross multiply
    19,166.64x = 26,451 × 12,888.24
  4. Step 4: Simplify right side
    19,166.64x = 340,906,836.24
  5. Step 5: Solve for x
    x = 340,906,836.24/19,166.64
  6. Step 6: Final answer
    x = 17,786.47

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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.