Home / 13,244.40-18,275.46-7,578.54

Finding the Fourth Proportional to 13,244.40, 18,275.46 and 7,578.54

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Solution

The fourth proportional to 13,244.40, 18,275.46 and 7,578.54 is: 10,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.40 : 18,275.46 = 7,578.54 : x
  2. Step 2: Convert to fraction form
    13,244.40/18,275.46 = 7,578.54/x
  3. Step 3: Cross multiply
    13,244.40x = 18,275.46 × 7,578.54
  4. Step 4: Simplify right side
    13,244.40x = 138,501,304.63
  5. Step 5: Solve for x
    x = 138,501,304.63/13,244.40
  6. Step 6: Final answer
    x = 10,457.35

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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.