Home / 13,734.69-18,953.81-7,447.07

Finding the Fourth Proportional to 13,734.69, 18,953.81 and 7,447.07

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Solution

The fourth proportional to 13,734.69, 18,953.81 and 7,447.07 is: 10,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.69 : 18,953.81 = 7,447.07 : x
  2. Step 2: Convert to fraction form
    13,734.69/18,953.81 = 7,447.07/x
  3. Step 3: Cross multiply
    13,734.69x = 18,953.81 × 7,447.07
  4. Step 4: Simplify right side
    13,734.69x = 141,150,349.84
  5. Step 5: Solve for x
    x = 141,150,349.84/13,734.69
  6. Step 6: Final answer
    x = 10,276.92

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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.