Home / 13,541.55-20,312.85-4,180.74

Finding the Fourth Proportional to 13,541.55, 20,312.85 and 4,180.74

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Solution

The fourth proportional to 13,541.55, 20,312.85 and 4,180.74 is: 6,271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.55 : 20,312.85 = 4,180.74 : x
  2. Step 2: Convert to fraction form
    13,541.55/20,312.85 = 4,180.74/x
  3. Step 3: Cross multiply
    13,541.55x = 20,312.85 × 4,180.74
  4. Step 4: Simplify right side
    13,541.55x = 84,922,744.51
  5. Step 5: Solve for x
    x = 84,922,744.51/13,541.55
  6. Step 6: Final answer
    x = 6,271.27

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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.