Home / 14,130.72-19,503.96-8,165.88

Finding the Fourth Proportional to 14,130.72, 19,503.96 and 8,165.88

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Solution

The fourth proportional to 14,130.72, 19,503.96 and 8,165.88 is: 11,270.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.72 : 19,503.96 = 8,165.88 : x
  2. Step 2: Convert to fraction form
    14,130.72/19,503.96 = 8,165.88/x
  3. Step 3: Cross multiply
    14,130.72x = 19,503.96 × 8,165.88
  4. Step 4: Simplify right side
    14,130.72x = 159,266,996.88
  5. Step 5: Solve for x
    x = 159,266,996.88/14,130.72
  6. Step 6: Final answer
    x = 11,270.98

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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.