Home / 14,113.03-21,128.01-9,421.40

Finding the Fourth Proportional to 14,113.03, 21,128.01 and 9,421.40

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Solution

The fourth proportional to 14,113.03, 21,128.01 and 9,421.40 is: 14,104.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.03 : 21,128.01 = 9,421.40 : x
  2. Step 2: Convert to fraction form
    14,113.03/21,128.01 = 9,421.40/x
  3. Step 3: Cross multiply
    14,113.03x = 21,128.01 × 9,421.40
  4. Step 4: Simplify right side
    14,113.03x = 199,055,433.41
  5. Step 5: Solve for x
    x = 199,055,433.41/14,113.03
  6. Step 6: Final answer
    x = 14,104.37

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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.