Home / 14,421.34-19,890.25-9,114.22

Finding the Fourth Proportional to 14,421.34, 19,890.25 and 9,114.22

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Solution

The fourth proportional to 14,421.34, 19,890.25 and 9,114.22 is: 12,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.34 : 19,890.25 = 9,114.22 : x
  2. Step 2: Convert to fraction form
    14,421.34/19,890.25 = 9,114.22/x
  3. Step 3: Cross multiply
    14,421.34x = 19,890.25 × 9,114.22
  4. Step 4: Simplify right side
    14,421.34x = 181,284,114.36
  5. Step 5: Solve for x
    x = 181,284,114.36/14,421.34
  6. Step 6: Final answer
    x = 12,570.55

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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.