Home / 15,379.48-21,216.17-9,006.20

Finding the Fourth Proportional to 15,379.48, 21,216.17 and 9,006.20

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Solution

The fourth proportional to 15,379.48, 21,216.17 and 9,006.20 is: 12,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.48 : 21,216.17 = 9,006.20 : x
  2. Step 2: Convert to fraction form
    15,379.48/21,216.17 = 9,006.20/x
  3. Step 3: Cross multiply
    15,379.48x = 21,216.17 × 9,006.20
  4. Step 4: Simplify right side
    15,379.48x = 191,077,066.25
  5. Step 5: Solve for x
    x = 191,077,066.25/15,379.48
  6. Step 6: Final answer
    x = 12,424.16

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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.