Home / 10,400.16-15,572.40-6,496.80

Finding the Fourth Proportional to 10,400.16, 15,572.40 and 6,496.80

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Solution

The fourth proportional to 10,400.16, 15,572.40 and 6,496.80 is: 9,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.16 : 15,572.40 = 6,496.80 : x
  2. Step 2: Convert to fraction form
    10,400.16/15,572.40 = 6,496.80/x
  3. Step 3: Cross multiply
    10,400.16x = 15,572.40 × 6,496.80
  4. Step 4: Simplify right side
    10,400.16x = 101,170,768.32
  5. Step 5: Solve for x
    x = 101,170,768.32/10,400.16
  6. Step 6: Final answer
    x = 9,727.81

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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.