Home / 14,238.24-21,347.10-8,690.28

Finding the Fourth Proportional to 14,238.24, 21,347.10 and 8,690.28

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Solution

The fourth proportional to 14,238.24, 21,347.10 and 8,690.28 is: 13,029.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.24 : 21,347.10 = 8,690.28 : x
  2. Step 2: Convert to fraction form
    14,238.24/21,347.10 = 8,690.28/x
  3. Step 3: Cross multiply
    14,238.24x = 21,347.10 × 8,690.28
  4. Step 4: Simplify right side
    14,238.24x = 185,512,276.19
  5. Step 5: Solve for x
    x = 185,512,276.19/14,238.24
  6. Step 6: Final answer
    x = 13,029.16

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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.