Home / 13,510.74-18,644.65-7,542.51

Finding the Fourth Proportional to 13,510.74, 18,644.65 and 7,542.51

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Solution

The fourth proportional to 13,510.74, 18,644.65 and 7,542.51 is: 10,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.74 : 18,644.65 = 7,542.51 : x
  2. Step 2: Convert to fraction form
    13,510.74/18,644.65 = 7,542.51/x
  3. Step 3: Cross multiply
    13,510.74x = 18,644.65 × 7,542.51
  4. Step 4: Simplify right side
    13,510.74x = 140,627,328.14
  5. Step 5: Solve for x
    x = 140,627,328.14/13,510.74
  6. Step 6: Final answer
    x = 10,408.56

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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.