Home / 15,455.61-21,305.07-9,476.19

Finding the Fourth Proportional to 15,455.61, 21,305.07 and 9,476.19

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Solution

The fourth proportional to 15,455.61, 21,305.07 and 9,476.19 is: 13,062.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.61 : 21,305.07 = 9,476.19 : x
  2. Step 2: Convert to fraction form
    15,455.61/21,305.07 = 9,476.19/x
  3. Step 3: Cross multiply
    15,455.61x = 21,305.07 × 9,476.19
  4. Step 4: Simplify right side
    15,455.61x = 201,890,891.28
  5. Step 5: Solve for x
    x = 201,890,891.28/15,455.61
  6. Step 6: Final answer
    x = 13,062.63

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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.