Home / 13,242.84-18,275.26-7,274.76

Finding the Fourth Proportional to 13,242.84, 18,275.26 and 7,274.76

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Solution

The fourth proportional to 13,242.84, 18,275.26 and 7,274.76 is: 10,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.84 : 18,275.26 = 7,274.76 : x
  2. Step 2: Convert to fraction form
    13,242.84/18,275.26 = 7,274.76/x
  3. Step 3: Cross multiply
    13,242.84x = 18,275.26 × 7,274.76
  4. Step 4: Simplify right side
    13,242.84x = 132,948,130.44
  5. Step 5: Solve for x
    x = 132,948,130.44/13,242.84
  6. Step 6: Final answer
    x = 10,039.25

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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.