Home / 9,215.51-12,717.77-5,236.99

Finding the Fourth Proportional to 9,215.51, 12,717.77 and 5,236.99

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Solution

The fourth proportional to 9,215.51, 12,717.77 and 5,236.99 is: 7,227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.51 : 12,717.77 = 5,236.99 : x
  2. Step 2: Convert to fraction form
    9,215.51/12,717.77 = 5,236.99/x
  3. Step 3: Cross multiply
    9,215.51x = 12,717.77 × 5,236.99
  4. Step 4: Simplify right side
    9,215.51x = 66,602,834.31
  5. Step 5: Solve for x
    x = 66,602,834.31/9,215.51
  6. Step 6: Final answer
    x = 7,227.25

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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.