Home / 13,572.46-18,728.25-7,603.17

Finding the Fourth Proportional to 13,572.46, 18,728.25 and 7,603.17

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Solution

The fourth proportional to 13,572.46, 18,728.25 and 7,603.17 is: 10,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.46 : 18,728.25 = 7,603.17 : x
  2. Step 2: Convert to fraction form
    13,572.46/18,728.25 = 7,603.17/x
  3. Step 3: Cross multiply
    13,572.46x = 18,728.25 × 7,603.17
  4. Step 4: Simplify right side
    13,572.46x = 142,393,969.81
  5. Step 5: Solve for x
    x = 142,393,969.81/13,572.46
  6. Step 6: Final answer
    x = 10,491.39

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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.