Home / 15,313.43-21,132.28-8,599.07

Finding the Fourth Proportional to 15,313.43, 21,132.28 and 8,599.07

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Solution

The fourth proportional to 15,313.43, 21,132.28 and 8,599.07 is: 11,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.43 : 21,132.28 = 8,599.07 : x
  2. Step 2: Convert to fraction form
    15,313.43/21,132.28 = 8,599.07/x
  3. Step 3: Cross multiply
    15,313.43x = 21,132.28 × 8,599.07
  4. Step 4: Simplify right side
    15,313.43x = 181,717,954.98
  5. Step 5: Solve for x
    x = 181,717,954.98/15,313.43
  6. Step 6: Final answer
    x = 11,866.57

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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.