Home / 15,333.84-21,159.63-9,045

Finding the Fourth Proportional to 15,333.84, 21,159.63 and 9,045

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Solution

The fourth proportional to 15,333.84, 21,159.63 and 9,045 is: 12,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333.84 : 21,159.63 = 9,045 : x
  2. Step 2: Convert to fraction form
    15,333.84/21,159.63 = 9,045/x
  3. Step 3: Cross multiply
    15,333.84x = 21,159.63 × 9,045
  4. Step 4: Simplify right side
    15,333.84x = 191,388,853.35
  5. Step 5: Solve for x
    x = 191,388,853.35/15,333.84
  6. Step 6: Final answer
    x = 12,481.47

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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.