Home / 15,259.57-21,036.53-11,219.28

Finding the Fourth Proportional to 15,259.57, 21,036.53 and 11,219.28

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Solution

The fourth proportional to 15,259.57, 21,036.53 and 11,219.28 is: 15,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259.57 : 21,036.53 = 11,219.28 : x
  2. Step 2: Convert to fraction form
    15,259.57/21,036.53 = 11,219.28/x
  3. Step 3: Cross multiply
    15,259.57x = 21,036.53 × 11,219.28
  4. Step 4: Simplify right side
    15,259.57x = 236,014,606.35
  5. Step 5: Solve for x
    x = 236,014,606.35/15,259.57
  6. Step 6: Final answer
    x = 15,466.66

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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.