Home / 13,700.72-20,551.08-3,312.48

Finding the Fourth Proportional to 13,700.72, 20,551.08 and 3,312.48

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Solution

The fourth proportional to 13,700.72, 20,551.08 and 3,312.48 is: 4,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.72 : 20,551.08 = 3,312.48 : x
  2. Step 2: Convert to fraction form
    13,700.72/20,551.08 = 3,312.48/x
  3. Step 3: Cross multiply
    13,700.72x = 20,551.08 × 3,312.48
  4. Step 4: Simplify right side
    13,700.72x = 68,075,041.48
  5. Step 5: Solve for x
    x = 68,075,041.48/13,700.72
  6. Step 6: Final answer
    x = 4,968.72

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Similar ratio
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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.