Home / 13,212.90-19,823.56-4,894.10

Finding the Fourth Proportional to 13,212.90, 19,823.56 and 4,894.10

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Solution

The fourth proportional to 13,212.90, 19,823.56 and 4,894.10 is: 7,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.90 : 19,823.56 = 4,894.10 : x
  2. Step 2: Convert to fraction form
    13,212.90/19,823.56 = 4,894.10/x
  3. Step 3: Cross multiply
    13,212.90x = 19,823.56 × 4,894.10
  4. Step 4: Simplify right side
    13,212.90x = 97,018,405.99
  5. Step 5: Solve for x
    x = 97,018,405.99/13,212.90
  6. Step 6: Final answer
    x = 7,342.70

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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.