Home / 10,400.89-14,360.75-6,427.45

Finding the Fourth Proportional to 10,400.89, 14,360.75 and 6,427.45

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Solution

The fourth proportional to 10,400.89, 14,360.75 and 6,427.45 is: 8,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.89 : 14,360.75 = 6,427.45 : x
  2. Step 2: Convert to fraction form
    10,400.89/14,360.75 = 6,427.45/x
  3. Step 3: Cross multiply
    10,400.89x = 14,360.75 × 6,427.45
  4. Step 4: Simplify right side
    10,400.89x = 92,302,970.45
  5. Step 5: Solve for x
    x = 92,302,970.45/10,400.89
  6. Step 6: Final answer
    x = 8,874.53

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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.