Home / 13,125.90-19,681.54-4,356.02

Finding the Fourth Proportional to 13,125.90, 19,681.54 and 4,356.02

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Solution

The fourth proportional to 13,125.90, 19,681.54 and 4,356.02 is: 6,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.90 : 19,681.54 = 4,356.02 : x
  2. Step 2: Convert to fraction form
    13,125.90/19,681.54 = 4,356.02/x
  3. Step 3: Cross multiply
    13,125.90x = 19,681.54 × 4,356.02
  4. Step 4: Simplify right side
    13,125.90x = 85,733,181.87
  5. Step 5: Solve for x
    x = 85,733,181.87/13,125.90
  6. Step 6: Final answer
    x = 6,531.60

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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.