Home / 14,421.18-19,901.19-8,133.55

Finding the Fourth Proportional to 14,421.18, 19,901.19 and 8,133.55

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Solution

The fourth proportional to 14,421.18, 19,901.19 and 8,133.55 is: 11,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.18 : 19,901.19 = 8,133.55 : x
  2. Step 2: Convert to fraction form
    14,421.18/19,901.19 = 8,133.55/x
  3. Step 3: Cross multiply
    14,421.18x = 19,901.19 × 8,133.55
  4. Step 4: Simplify right side
    14,421.18x = 161,867,323.92
  5. Step 5: Solve for x
    x = 161,867,323.92/14,421.18
  6. Step 6: Final answer
    x = 11,224.28

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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.