Home / 14,130.80-19,498.28-8,161.32

Finding the Fourth Proportional to 14,130.80, 19,498.28 and 8,161.32

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Solution

The fourth proportional to 14,130.80, 19,498.28 and 8,161.32 is: 11,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.80 : 19,498.28 = 8,161.32 : x
  2. Step 2: Convert to fraction form
    14,130.80/19,498.28 = 8,161.32/x
  3. Step 3: Cross multiply
    14,130.80x = 19,498.28 × 8,161.32
  4. Step 4: Simplify right side
    14,130.80x = 159,131,702.53
  5. Step 5: Solve for x
    x = 159,131,702.53/14,130.80
  6. Step 6: Final answer
    x = 11,261.34

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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.