Home / 14,353.40-21,521.81-5,578.06

Finding the Fourth Proportional to 14,353.40, 21,521.81 and 5,578.06

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Solution

The fourth proportional to 14,353.40, 21,521.81 and 5,578.06 is: 8,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.40 : 21,521.81 = 5,578.06 : x
  2. Step 2: Convert to fraction form
    14,353.40/21,521.81 = 5,578.06/x
  3. Step 3: Cross multiply
    14,353.40x = 21,521.81 × 5,578.06
  4. Step 4: Simplify right side
    14,353.40x = 120,049,907.63
  5. Step 5: Solve for x
    x = 120,049,907.63/14,353.40
  6. Step 6: Final answer
    x = 8,363.87

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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.