Home / 13,313.13-19,969.80-5,915.61

Finding the Fourth Proportional to 13,313.13, 19,969.80 and 5,915.61

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Solution

The fourth proportional to 13,313.13, 19,969.80 and 5,915.61 is: 8,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.13 : 19,969.80 = 5,915.61 : x
  2. Step 2: Convert to fraction form
    13,313.13/19,969.80 = 5,915.61/x
  3. Step 3: Cross multiply
    13,313.13x = 19,969.80 × 5,915.61
  4. Step 4: Simplify right side
    13,313.13x = 118,133,548.58
  5. Step 5: Solve for x
    x = 118,133,548.58/13,313.13
  6. Step 6: Final answer
    x = 8,873.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.