Home / 13,548.10-20,323.51-3,688.15

Finding the Fourth Proportional to 13,548.10, 20,323.51 and 3,688.15

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Solution

The fourth proportional to 13,548.10, 20,323.51 and 3,688.15 is: 5,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.10 : 20,323.51 = 3,688.15 : x
  2. Step 2: Convert to fraction form
    13,548.10/20,323.51 = 3,688.15/x
  3. Step 3: Cross multiply
    13,548.10x = 20,323.51 × 3,688.15
  4. Step 4: Simplify right side
    13,548.10x = 74,956,153.41
  5. Step 5: Solve for x
    x = 74,956,153.41/13,548.10
  6. Step 6: Final answer
    x = 5,532.60

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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.