Home / 14,810.98-20,437.26-8,438.38

Finding the Fourth Proportional to 14,810.98, 20,437.26 and 8,438.38

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Solution

The fourth proportional to 14,810.98, 20,437.26 and 8,438.38 is: 11,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.98 : 20,437.26 = 8,438.38 : x
  2. Step 2: Convert to fraction form
    14,810.98/20,437.26 = 8,438.38/x
  3. Step 3: Cross multiply
    14,810.98x = 20,437.26 × 8,438.38
  4. Step 4: Simplify right side
    14,810.98x = 172,457,366.04
  5. Step 5: Solve for x
    x = 172,457,366.04/14,810.98
  6. Step 6: Final answer
    x = 11,643.89

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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.