Home / 14,399.17-19,871.27-8,430.28

Finding the Fourth Proportional to 14,399.17, 19,871.27 and 8,430.28

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Solution

The fourth proportional to 14,399.17, 19,871.27 and 8,430.28 is: 11,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.17 : 19,871.27 = 8,430.28 : x
  2. Step 2: Convert to fraction form
    14,399.17/19,871.27 = 8,430.28/x
  3. Step 3: Cross multiply
    14,399.17x = 19,871.27 × 8,430.28
  4. Step 4: Simplify right side
    14,399.17x = 167,520,370.06
  5. Step 5: Solve for x
    x = 167,520,370.06/14,399.17
  6. Step 6: Final answer
    x = 11,634.03

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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.