Home / 19,130.52-28,688.94-6,647.52

Finding the Fourth Proportional to 19,130.52, 28,688.94 and 6,647.52

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Solution

The fourth proportional to 19,130.52, 28,688.94 and 6,647.52 is: 9,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.52 : 28,688.94 = 6,647.52 : x
  2. Step 2: Convert to fraction form
    19,130.52/28,688.94 = 6,647.52/x
  3. Step 3: Cross multiply
    19,130.52x = 28,688.94 × 6,647.52
  4. Step 4: Simplify right side
    19,130.52x = 190,710,302.43
  5. Step 5: Solve for x
    x = 190,710,302.43/19,130.52
  6. Step 6: Final answer
    x = 9,968.90

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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.