Home / 15,919.43-23,870.90-8,427.05

Finding the Fourth Proportional to 15,919.43, 23,870.90 and 8,427.05

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Solution

The fourth proportional to 15,919.43, 23,870.90 and 8,427.05 is: 12,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.43 : 23,870.90 = 8,427.05 : x
  2. Step 2: Convert to fraction form
    15,919.43/23,870.90 = 8,427.05/x
  3. Step 3: Cross multiply
    15,919.43x = 23,870.90 × 8,427.05
  4. Step 4: Simplify right side
    15,919.43x = 201,161,225.71
  5. Step 5: Solve for x
    x = 201,161,225.71/15,919.43
  6. Step 6: Final answer
    x = 12,636.21

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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.