Home / 19,132.42-28,686.88-6,647.08

Finding the Fourth Proportional to 19,132.42, 28,686.88 and 6,647.08

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Solution

The fourth proportional to 19,132.42, 28,686.88 and 6,647.08 is: 9,966.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132.42 : 28,686.88 = 6,647.08 : x
  2. Step 2: Convert to fraction form
    19,132.42/28,686.88 = 6,647.08/x
  3. Step 3: Cross multiply
    19,132.42x = 28,686.88 × 6,647.08
  4. Step 4: Simplify right side
    19,132.42x = 190,683,986.31
  5. Step 5: Solve for x
    x = 190,683,986.31/19,132.42
  6. Step 6: Final answer
    x = 9,966.54

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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.