Home / 15,291.84-21,097.68-9,322.08

Finding the Fourth Proportional to 15,291.84, 21,097.68 and 9,322.08

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Solution

The fourth proportional to 15,291.84, 21,097.68 and 9,322.08 is: 12,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.84 : 21,097.68 = 9,322.08 : x
  2. Step 2: Convert to fraction form
    15,291.84/21,097.68 = 9,322.08/x
  3. Step 3: Cross multiply
    15,291.84x = 21,097.68 × 9,322.08
  4. Step 4: Simplify right side
    15,291.84x = 196,674,260.77
  5. Step 5: Solve for x
    x = 196,674,260.77/15,291.84
  6. Step 6: Final answer
    x = 12,861.39

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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.