Home / 13,153.32-18,151.90-7,184.94

Finding the Fourth Proportional to 13,153.32, 18,151.90 and 7,184.94

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Solution

The fourth proportional to 13,153.32, 18,151.90 and 7,184.94 is: 9,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.32 : 18,151.90 = 7,184.94 : x
  2. Step 2: Convert to fraction form
    13,153.32/18,151.90 = 7,184.94/x
  3. Step 3: Cross multiply
    13,153.32x = 18,151.90 × 7,184.94
  4. Step 4: Simplify right side
    13,153.32x = 130,420,226.35
  5. Step 5: Solve for x
    x = 130,420,226.35/13,153.32
  6. Step 6: Final answer
    x = 9,915.38

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Half scale
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Double scale
Find fourth proportional to 13,154.32, 18,153.28 and 7,185.94
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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.