Home / 19,013.78-28,518.48-4,975.16

Finding the Fourth Proportional to 19,013.78, 28,518.48 and 4,975.16

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Solution

The fourth proportional to 19,013.78, 28,518.48 and 4,975.16 is: 7,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.78 : 28,518.48 = 4,975.16 : x
  2. Step 2: Convert to fraction form
    19,013.78/28,518.48 = 4,975.16/x
  3. Step 3: Cross multiply
    19,013.78x = 28,518.48 × 4,975.16
  4. Step 4: Simplify right side
    19,013.78x = 141,884,000.96
  5. Step 5: Solve for x
    x = 141,884,000.96/19,013.78
  6. Step 6: Final answer
    x = 7,462.17

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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.