Home / 14,121.80-19,485.88-8,152.32

Finding the Fourth Proportional to 14,121.80, 19,485.88 and 8,152.32

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Solution

The fourth proportional to 14,121.80, 19,485.88 and 8,152.32 is: 11,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.80 : 19,485.88 = 8,152.32 : x
  2. Step 2: Convert to fraction form
    14,121.80/19,485.88 = 8,152.32/x
  3. Step 3: Cross multiply
    14,121.80x = 19,485.88 × 8,152.32
  4. Step 4: Simplify right side
    14,121.80x = 158,855,031.81
  5. Step 5: Solve for x
    x = 158,855,031.81/14,121.80
  6. Step 6: Final answer
    x = 11,248.92

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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.