Home / 19,314.24-28,987.80-7,635.72

Finding the Fourth Proportional to 19,314.24, 28,987.80 and 7,635.72

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Solution

The fourth proportional to 19,314.24, 28,987.80 and 7,635.72 is: 11,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.24 : 28,987.80 = 7,635.72 : x
  2. Step 2: Convert to fraction form
    19,314.24/28,987.80 = 7,635.72/x
  3. Step 3: Cross multiply
    19,314.24x = 28,987.80 × 7,635.72
  4. Step 4: Simplify right side
    19,314.24x = 221,342,724.22
  5. Step 5: Solve for x
    x = 221,342,724.22/19,314.24
  6. Step 6: Final answer
    x = 11,460.08

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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.