Home / 14,301.80-21,452.70-8,455.40

Finding the Fourth Proportional to 14,301.80, 21,452.70 and 8,455.40

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Solution

The fourth proportional to 14,301.80, 21,452.70 and 8,455.40 is: 12,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,301.80 : 21,452.70 = 8,455.40 : x
  2. Step 2: Convert to fraction form
    14,301.80/21,452.70 = 8,455.40/x
  3. Step 3: Cross multiply
    14,301.80x = 21,452.70 × 8,455.40
  4. Step 4: Simplify right side
    14,301.80x = 181,391,159.58
  5. Step 5: Solve for x
    x = 181,391,159.58/14,301.80
  6. Step 6: Final answer
    x = 12,683.10

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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.