Home / 15,679.04-21,629.28-9,302.84

Finding the Fourth Proportional to 15,679.04, 21,629.28 and 9,302.84

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Solution

The fourth proportional to 15,679.04, 21,629.28 and 9,302.84 is: 12,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.04 : 21,629.28 = 9,302.84 : x
  2. Step 2: Convert to fraction form
    15,679.04/21,629.28 = 9,302.84/x
  3. Step 3: Cross multiply
    15,679.04x = 21,629.28 × 9,302.84
  4. Step 4: Simplify right side
    15,679.04x = 201,213,731.16
  5. Step 5: Solve for x
    x = 201,213,731.16/15,679.04
  6. Step 6: Final answer
    x = 12,833.29

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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.