Home / 10,400.40-15,600.60-6,913.35

Finding the Fourth Proportional to 10,400.40, 15,600.60 and 6,913.35

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Solution

The fourth proportional to 10,400.40, 15,600.60 and 6,913.35 is: 10,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.40 : 15,600.60 = 6,913.35 : x
  2. Step 2: Convert to fraction form
    10,400.40/15,600.60 = 6,913.35/x
  3. Step 3: Cross multiply
    10,400.40x = 15,600.60 × 6,913.35
  4. Step 4: Simplify right side
    10,400.40x = 107,852,408.01
  5. Step 5: Solve for x
    x = 107,852,408.01/10,400.40
  6. Step 6: Final answer
    x = 10,370.03

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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.