Home / 13,219.66-19,816.78-4,897.42

Finding the Fourth Proportional to 13,219.66, 19,816.78 and 4,897.42

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Solution

The fourth proportional to 13,219.66, 19,816.78 and 4,897.42 is: 7,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.66 : 19,816.78 = 4,897.42 : x
  2. Step 2: Convert to fraction form
    13,219.66/19,816.78 = 4,897.42/x
  3. Step 3: Cross multiply
    13,219.66x = 19,816.78 × 4,897.42
  4. Step 4: Simplify right side
    13,219.66x = 97,051,094.71
  5. Step 5: Solve for x
    x = 97,051,094.71/13,219.66
  6. Step 6: Final answer
    x = 7,341.42

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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.