Home / 15,216.28-21,006.08-9,559.24

Finding the Fourth Proportional to 15,216.28, 21,006.08 and 9,559.24

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Solution

The fourth proportional to 15,216.28, 21,006.08 and 9,559.24 is: 13,196.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.28 : 21,006.08 = 9,559.24 : x
  2. Step 2: Convert to fraction form
    15,216.28/21,006.08 = 9,559.24/x
  3. Step 3: Cross multiply
    15,216.28x = 21,006.08 × 9,559.24
  4. Step 4: Simplify right side
    15,216.28x = 200,802,160.18
  5. Step 5: Solve for x
    x = 200,802,160.18/15,216.28
  6. Step 6: Final answer
    x = 13,196.53

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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.