Home / 15,459.68-21,334.73-8,744.99

Finding the Fourth Proportional to 15,459.68, 21,334.73 and 8,744.99

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Solution

The fourth proportional to 15,459.68, 21,334.73 and 8,744.99 is: 12,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.68 : 21,334.73 = 8,744.99 : x
  2. Step 2: Convert to fraction form
    15,459.68/21,334.73 = 8,744.99/x
  3. Step 3: Cross multiply
    15,459.68x = 21,334.73 × 8,744.99
  4. Step 4: Simplify right side
    15,459.68x = 186,571,915.69
  5. Step 5: Solve for x
    x = 186,571,915.69/15,459.68
  6. Step 6: Final answer
    x = 12,068.29

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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.