Home / 13,315.73-18,373.56-7,572.57

Finding the Fourth Proportional to 13,315.73, 18,373.56 and 7,572.57

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Solution

The fourth proportional to 13,315.73, 18,373.56 and 7,572.57 is: 10,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.73 : 18,373.56 = 7,572.57 : x
  2. Step 2: Convert to fraction form
    13,315.73/18,373.56 = 7,572.57/x
  3. Step 3: Cross multiply
    13,315.73x = 18,373.56 × 7,572.57
  4. Step 4: Simplify right side
    13,315.73x = 139,135,096.60
  5. Step 5: Solve for x
    x = 139,135,096.60/13,315.73
  6. Step 6: Final answer
    x = 10,448.93

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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.