Home / 7,808.47-10,775.23-4,451.28

Finding the Fourth Proportional to 7,808.47, 10,775.23 and 4,451.28

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Solution

The fourth proportional to 7,808.47, 10,775.23 and 4,451.28 is: 6,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.47 : 10,775.23 = 4,451.28 : x
  2. Step 2: Convert to fraction form
    7,808.47/10,775.23 = 4,451.28/x
  3. Step 3: Cross multiply
    7,808.47x = 10,775.23 × 4,451.28
  4. Step 4: Simplify right side
    7,808.47x = 47,963,565.79
  5. Step 5: Solve for x
    x = 47,963,565.79/7,808.47
  6. Step 6: Final answer
    x = 6,142.50

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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.