Home / 10,312.40-15,474.20-4,388.32

Finding the Fourth Proportional to 10,312.40, 15,474.20 and 4,388.32

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Solution

The fourth proportional to 10,312.40, 15,474.20 and 4,388.32 is: 6,584.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.40 : 15,474.20 = 4,388.32 : x
  2. Step 2: Convert to fraction form
    10,312.40/15,474.20 = 4,388.32/x
  3. Step 3: Cross multiply
    10,312.40x = 15,474.20 × 4,388.32
  4. Step 4: Simplify right side
    10,312.40x = 67,905,741.34
  5. Step 5: Solve for x
    x = 67,905,741.34/10,312.40
  6. Step 6: Final answer
    x = 6,584.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.