Home / 11,437.12-15,812.64-8,793.28

Finding the Fourth Proportional to 11,437.12, 15,812.64 and 8,793.28

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Solution

The fourth proportional to 11,437.12, 15,812.64 and 8,793.28 is: 12,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.12 : 15,812.64 = 8,793.28 : x
  2. Step 2: Convert to fraction form
    11,437.12/15,812.64 = 8,793.28/x
  3. Step 3: Cross multiply
    11,437.12x = 15,812.64 × 8,793.28
  4. Step 4: Simplify right side
    11,437.12x = 139,044,971.06
  5. Step 5: Solve for x
    x = 139,044,971.06/11,437.12
  6. Step 6: Final answer
    x = 12,157.34

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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.