Home / 15,302.53-21,112.18-9,637.75

Finding the Fourth Proportional to 15,302.53, 21,112.18 and 9,637.75

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Solution

The fourth proportional to 15,302.53, 21,112.18 and 9,637.75 is: 13,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.53 : 21,112.18 = 9,637.75 : x
  2. Step 2: Convert to fraction form
    15,302.53/21,112.18 = 9,637.75/x
  3. Step 3: Cross multiply
    15,302.53x = 21,112.18 × 9,637.75
  4. Step 4: Simplify right side
    15,302.53x = 203,473,915.09
  5. Step 5: Solve for x
    x = 203,473,915.09/15,302.53
  6. Step 6: Final answer
    x = 13,296.75

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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.