Home / 11,225.64-15,492.78-6,447.08

Finding the Fourth Proportional to 11,225.64, 15,492.78 and 6,447.08

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Solution

The fourth proportional to 11,225.64, 15,492.78 and 6,447.08 is: 8,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.64 : 15,492.78 = 6,447.08 : x
  2. Step 2: Convert to fraction form
    11,225.64/15,492.78 = 6,447.08/x
  3. Step 3: Cross multiply
    11,225.64x = 15,492.78 × 6,447.08
  4. Step 4: Simplify right side
    11,225.64x = 99,883,114.62
  5. Step 5: Solve for x
    x = 99,883,114.62/11,225.64
  6. Step 6: Final answer
    x = 8,897.77

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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.