Home / 13,987.98-19,303.47-7,700.58

Finding the Fourth Proportional to 13,987.98, 19,303.47 and 7,700.58

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Solution

The fourth proportional to 13,987.98, 19,303.47 and 7,700.58 is: 10,626.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.98 : 19,303.47 = 7,700.58 : x
  2. Step 2: Convert to fraction form
    13,987.98/19,303.47 = 7,700.58/x
  3. Step 3: Cross multiply
    13,987.98x = 19,303.47 × 7,700.58
  4. Step 4: Simplify right side
    13,987.98x = 148,647,915.01
  5. Step 5: Solve for x
    x = 148,647,915.01/13,987.98
  6. Step 6: Final answer
    x = 10,626.83

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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.