Home / 15,302.22-21,117-8,933.19

Finding the Fourth Proportional to 15,302.22, 21,117 and 8,933.19

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Solution

The fourth proportional to 15,302.22, 21,117 and 8,933.19 is: 12,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.22 : 21,117 = 8,933.19 : x
  2. Step 2: Convert to fraction form
    15,302.22/21,117 = 8,933.19/x
  3. Step 3: Cross multiply
    15,302.22x = 21,117 × 8,933.19
  4. Step 4: Simplify right side
    15,302.22x = 188,642,173.23
  5. Step 5: Solve for x
    x = 188,642,173.23/15,302.22
  6. Step 6: Final answer
    x = 12,327.77

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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.