Home / 12,656.25-18,984.51-4,870.53

Finding the Fourth Proportional to 12,656.25, 18,984.51 and 4,870.53

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Solution

The fourth proportional to 12,656.25, 18,984.51 and 4,870.53 is: 7,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.25 : 18,984.51 = 4,870.53 : x
  2. Step 2: Convert to fraction form
    12,656.25/18,984.51 = 4,870.53/x
  3. Step 3: Cross multiply
    12,656.25x = 18,984.51 × 4,870.53
  4. Step 4: Simplify right side
    12,656.25x = 92,464,625.49
  5. Step 5: Solve for x
    x = 92,464,625.49/12,656.25
  6. Step 6: Final answer
    x = 7,305.85

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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.