Home / 19,159.12-28,756.06-9,805.60

Finding the Fourth Proportional to 19,159.12, 28,756.06 and 9,805.60

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Solution

The fourth proportional to 19,159.12, 28,756.06 and 9,805.60 is: 14,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.12 : 28,756.06 = 9,805.60 : x
  2. Step 2: Convert to fraction form
    19,159.12/28,756.06 = 9,805.60/x
  3. Step 3: Cross multiply
    19,159.12x = 28,756.06 × 9,805.60
  4. Step 4: Simplify right side
    19,159.12x = 281,970,421.94
  5. Step 5: Solve for x
    x = 281,970,421.94/19,159.12
  6. Step 6: Final answer
    x = 14,717.30

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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.