Home / 14,143.04-19,518.36-7,855.28

Finding the Fourth Proportional to 14,143.04, 19,518.36 and 7,855.28

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Solution

The fourth proportional to 14,143.04, 19,518.36 and 7,855.28 is: 10,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.04 : 19,518.36 = 7,855.28 : x
  2. Step 2: Convert to fraction form
    14,143.04/19,518.36 = 7,855.28/x
  3. Step 3: Cross multiply
    14,143.04x = 19,518.36 × 7,855.28
  4. Step 4: Simplify right side
    14,143.04x = 153,322,182.94
  5. Step 5: Solve for x
    x = 153,322,182.94/14,143.04
  6. Step 6: Final answer
    x = 10,840.82

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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.