Home / 10,447.32-14,385.36-9,611.40

Finding the Fourth Proportional to 10,447.32, 14,385.36 and 9,611.40

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Solution

The fourth proportional to 10,447.32, 14,385.36 and 9,611.40 is: 13,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.32 : 14,385.36 = 9,611.40 : x
  2. Step 2: Convert to fraction form
    10,447.32/14,385.36 = 9,611.40/x
  3. Step 3: Cross multiply
    10,447.32x = 14,385.36 × 9,611.40
  4. Step 4: Simplify right side
    10,447.32x = 138,263,449.10
  5. Step 5: Solve for x
    x = 138,263,449.10/10,447.32
  6. Step 6: Final answer
    x = 13,234.35

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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.