Home / 14,266.40-19,642.91-12,954.20

Finding the Fourth Proportional to 14,266.40, 19,642.91 and 12,954.20

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Solution

The fourth proportional to 14,266.40, 19,642.91 and 12,954.20 is: 17,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.40 : 19,642.91 = 12,954.20 : x
  2. Step 2: Convert to fraction form
    14,266.40/19,642.91 = 12,954.20/x
  3. Step 3: Cross multiply
    14,266.40x = 19,642.91 × 12,954.20
  4. Step 4: Simplify right side
    14,266.40x = 254,458,021.74
  5. Step 5: Solve for x
    x = 254,458,021.74/14,266.40
  6. Step 6: Final answer
    x = 17,836.18

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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.