Home / 13,161.02-19,746.80-5,368.02

Finding the Fourth Proportional to 13,161.02, 19,746.80 and 5,368.02

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Solution

The fourth proportional to 13,161.02, 19,746.80 and 5,368.02 is: 8,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.02 : 19,746.80 = 5,368.02 : x
  2. Step 2: Convert to fraction form
    13,161.02/19,746.80 = 5,368.02/x
  3. Step 3: Cross multiply
    13,161.02x = 19,746.80 × 5,368.02
  4. Step 4: Simplify right side
    13,161.02x = 106,001,217.34
  5. Step 5: Solve for x
    x = 106,001,217.34/13,161.02
  6. Step 6: Final answer
    x = 8,054.18

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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.