Home / 14,272.80-19,701.36-8,610.72

Finding the Fourth Proportional to 14,272.80, 19,701.36 and 8,610.72

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Solution

The fourth proportional to 14,272.80, 19,701.36 and 8,610.72 is: 11,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.80 : 19,701.36 = 8,610.72 : x
  2. Step 2: Convert to fraction form
    14,272.80/19,701.36 = 8,610.72/x
  3. Step 3: Cross multiply
    14,272.80x = 19,701.36 × 8,610.72
  4. Step 4: Simplify right side
    14,272.80x = 169,642,894.58
  5. Step 5: Solve for x
    x = 169,642,894.58/14,272.80
  6. Step 6: Final answer
    x = 11,885.75

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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.