Home / 13,176.32-18,189.96-10,185.40

Finding the Fourth Proportional to 13,176.32, 18,189.96 and 10,185.40

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Solution

The fourth proportional to 13,176.32, 18,189.96 and 10,185.40 is: 14,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.32 : 18,189.96 = 10,185.40 : x
  2. Step 2: Convert to fraction form
    13,176.32/18,189.96 = 10,185.40/x
  3. Step 3: Cross multiply
    13,176.32x = 18,189.96 × 10,185.40
  4. Step 4: Simplify right side
    13,176.32x = 185,272,018.58
  5. Step 5: Solve for x
    x = 185,272,018.58/13,176.32
  6. Step 6: Final answer
    x = 14,060.98

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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.