Home / 13,954.22-20,931.33-4,719.50

Finding the Fourth Proportional to 13,954.22, 20,931.33 and 4,719.50

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Solution

The fourth proportional to 13,954.22, 20,931.33 and 4,719.50 is: 7,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.22 : 20,931.33 = 4,719.50 : x
  2. Step 2: Convert to fraction form
    13,954.22/20,931.33 = 4,719.50/x
  3. Step 3: Cross multiply
    13,954.22x = 20,931.33 × 4,719.50
  4. Step 4: Simplify right side
    13,954.22x = 98,785,411.94
  5. Step 5: Solve for x
    x = 98,785,411.94/13,954.22
  6. Step 6: Final answer
    x = 7,079.25

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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.