Home / 13,503.47-18,634.75-7,535.07

Finding the Fourth Proportional to 13,503.47, 18,634.75 and 7,535.07

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Solution

The fourth proportional to 13,503.47, 18,634.75 and 7,535.07 is: 10,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.47 : 18,634.75 = 7,535.07 : x
  2. Step 2: Convert to fraction form
    13,503.47/18,634.75 = 7,535.07/x
  3. Step 3: Cross multiply
    13,503.47x = 18,634.75 × 7,535.07
  4. Step 4: Simplify right side
    13,503.47x = 140,414,126.84
  5. Step 5: Solve for x
    x = 140,414,126.84/13,503.47
  6. Step 6: Final answer
    x = 10,398.38

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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.