Home / 18,927.04-28,394-7,827.72

Finding the Fourth Proportional to 18,927.04, 28,394 and 7,827.72

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Solution

The fourth proportional to 18,927.04, 28,394 and 7,827.72 is: 11,743.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.04 : 28,394 = 7,827.72 : x
  2. Step 2: Convert to fraction form
    18,927.04/28,394 = 7,827.72/x
  3. Step 3: Cross multiply
    18,927.04x = 28,394 × 7,827.72
  4. Step 4: Simplify right side
    18,927.04x = 222,260,281.68
  5. Step 5: Solve for x
    x = 222,260,281.68/18,927.04
  6. Step 6: Final answer
    x = 11,743.00

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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.