Home / 14,403.98-19,880.08-8,435.30

Finding the Fourth Proportional to 14,403.98, 19,880.08 and 8,435.30

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Solution

The fourth proportional to 14,403.98, 19,880.08 and 8,435.30 is: 11,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.98 : 19,880.08 = 8,435.30 : x
  2. Step 2: Convert to fraction form
    14,403.98/19,880.08 = 8,435.30/x
  3. Step 3: Cross multiply
    14,403.98x = 19,880.08 × 8,435.30
  4. Step 4: Simplify right side
    14,403.98x = 167,694,438.82
  5. Step 5: Solve for x
    x = 167,694,438.82/14,403.98
  6. Step 6: Final answer
    x = 11,642.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.