Home / 13,237.98-18,267.18-7,571.76

Finding the Fourth Proportional to 13,237.98, 18,267.18 and 7,571.76

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Solution

The fourth proportional to 13,237.98, 18,267.18 and 7,571.76 is: 10,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.98 : 18,267.18 = 7,571.76 : x
  2. Step 2: Convert to fraction form
    13,237.98/18,267.18 = 7,571.76/x
  3. Step 3: Cross multiply
    13,237.98x = 18,267.18 × 7,571.76
  4. Step 4: Simplify right side
    13,237.98x = 138,314,702.84
  5. Step 5: Solve for x
    x = 138,314,702.84/13,237.98
  6. Step 6: Final answer
    x = 10,448.32

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Half scale
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Double scale
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Similar ratio
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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.