Home / 15,603.84-21,528.96-9,313.92

Finding the Fourth Proportional to 15,603.84, 21,528.96 and 9,313.92

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Solution

The fourth proportional to 15,603.84, 21,528.96 and 9,313.92 is: 12,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.84 : 21,528.96 = 9,313.92 : x
  2. Step 2: Convert to fraction form
    15,603.84/21,528.96 = 9,313.92/x
  3. Step 3: Cross multiply
    15,603.84x = 21,528.96 × 9,313.92
  4. Step 4: Simplify right side
    15,603.84x = 200,519,011.12
  5. Step 5: Solve for x
    x = 200,519,011.12/15,603.84
  6. Step 6: Final answer
    x = 12,850.62

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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.