Home / 14,131.44-21,240.90-8,970.12

Finding the Fourth Proportional to 14,131.44, 21,240.90 and 8,970.12

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Solution

The fourth proportional to 14,131.44, 21,240.90 and 8,970.12 is: 13,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.44 : 21,240.90 = 8,970.12 : x
  2. Step 2: Convert to fraction form
    14,131.44/21,240.90 = 8,970.12/x
  3. Step 3: Cross multiply
    14,131.44x = 21,240.90 × 8,970.12
  4. Step 4: Simplify right side
    14,131.44x = 190,533,421.91
  5. Step 5: Solve for x
    x = 190,533,421.91/14,131.44
  6. Step 6: Final answer
    x = 13,482.94

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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.