Home / 14,289.20-19,714.48-9,257.28

Finding the Fourth Proportional to 14,289.20, 19,714.48 and 9,257.28

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Solution

The fourth proportional to 14,289.20, 19,714.48 and 9,257.28 is: 12,772.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.20 : 19,714.48 = 9,257.28 : x
  2. Step 2: Convert to fraction form
    14,289.20/19,714.48 = 9,257.28/x
  3. Step 3: Cross multiply
    14,289.20x = 19,714.48 × 9,257.28
  4. Step 4: Simplify right side
    14,289.20x = 182,502,461.41
  5. Step 5: Solve for x
    x = 182,502,461.41/14,289.20
  6. Step 6: Final answer
    x = 12,772.06

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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.