Home / 9,987.75-14,973.44-4,148.55

Finding the Fourth Proportional to 9,987.75, 14,973.44 and 4,148.55

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Solution

The fourth proportional to 9,987.75, 14,973.44 and 4,148.55 is: 6,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.75 : 14,973.44 = 4,148.55 : x
  2. Step 2: Convert to fraction form
    9,987.75/14,973.44 = 4,148.55/x
  3. Step 3: Cross multiply
    9,987.75x = 14,973.44 × 4,148.55
  4. Step 4: Simplify right side
    9,987.75x = 62,118,043.77
  5. Step 5: Solve for x
    x = 62,118,043.77/9,987.75
  6. Step 6: Final answer
    x = 6,219.42

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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.