Home / 15,372.57-21,214.19-8,998.01

Finding the Fourth Proportional to 15,372.57, 21,214.19 and 8,998.01

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Solution

The fourth proportional to 15,372.57, 21,214.19 and 8,998.01 is: 12,417.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.57 : 21,214.19 = 8,998.01 : x
  2. Step 2: Convert to fraction form
    15,372.57/21,214.19 = 8,998.01/x
  3. Step 3: Cross multiply
    15,372.57x = 21,214.19 × 8,998.01
  4. Step 4: Simplify right side
    15,372.57x = 190,885,342.70
  5. Step 5: Solve for x
    x = 190,885,342.70/15,372.57
  6. Step 6: Final answer
    x = 12,417.27

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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.