Home / 14,015.40-21,023-4,154.72

Finding the Fourth Proportional to 14,015.40, 21,023 and 4,154.72

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Solution

The fourth proportional to 14,015.40, 21,023 and 4,154.72 is: 6,232.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.40 : 21,023 = 4,154.72 : x
  2. Step 2: Convert to fraction form
    14,015.40/21,023 = 4,154.72/x
  3. Step 3: Cross multiply
    14,015.40x = 21,023 × 4,154.72
  4. Step 4: Simplify right side
    14,015.40x = 87,344,678.56
  5. Step 5: Solve for x
    x = 87,344,678.56/14,015.40
  6. Step 6: Final answer
    x = 6,232.05

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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.