Home / 13,700.84-20,551.08-3,312.52

Finding the Fourth Proportional to 13,700.84, 20,551.08 and 3,312.52

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Solution

The fourth proportional to 13,700.84, 20,551.08 and 3,312.52 is: 4,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.84 : 20,551.08 = 3,312.52 : x
  2. Step 2: Convert to fraction form
    13,700.84/20,551.08 = 3,312.52/x
  3. Step 3: Cross multiply
    13,700.84x = 20,551.08 × 3,312.52
  4. Step 4: Simplify right side
    13,700.84x = 68,075,863.52
  5. Step 5: Solve for x
    x = 68,075,863.52/13,700.84
  6. Step 6: Final answer
    x = 4,968.74

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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.