Home / 14,420.72-19,900.95-8,133.50

Finding the Fourth Proportional to 14,420.72, 19,900.95 and 8,133.50

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Solution

The fourth proportional to 14,420.72, 19,900.95 and 8,133.50 is: 11,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.72 : 19,900.95 = 8,133.50 : x
  2. Step 2: Convert to fraction form
    14,420.72/19,900.95 = 8,133.50/x
  3. Step 3: Cross multiply
    14,420.72x = 19,900.95 × 8,133.50
  4. Step 4: Simplify right side
    14,420.72x = 161,864,376.83
  5. Step 5: Solve for x
    x = 161,864,376.83/14,420.72
  6. Step 6: Final answer
    x = 11,224.43

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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.