Home / 11,176.08-15,428.25-6,459.45

Finding the Fourth Proportional to 11,176.08, 15,428.25 and 6,459.45

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Solution

The fourth proportional to 11,176.08, 15,428.25 and 6,459.45 is: 8,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.08 : 15,428.25 = 6,459.45 : x
  2. Step 2: Convert to fraction form
    11,176.08/15,428.25 = 6,459.45/x
  3. Step 3: Cross multiply
    11,176.08x = 15,428.25 × 6,459.45
  4. Step 4: Simplify right side
    11,176.08x = 99,658,009.46
  5. Step 5: Solve for x
    x = 99,658,009.46/11,176.08
  6. Step 6: Final answer
    x = 8,917.08

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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.