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Finding the Fourth Proportional to 8,950.78, 12,358.05 and 5,598.34

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Solution

The fourth proportional to 8,950.78, 12,358.05 and 5,598.34 is: 7,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.78 : 12,358.05 = 5,598.34 : x
  2. Step 2: Convert to fraction form
    8,950.78/12,358.05 = 5,598.34/x
  3. Step 3: Cross multiply
    8,950.78x = 12,358.05 × 5,598.34
  4. Step 4: Simplify right side
    8,950.78x = 69,184,565.64
  5. Step 5: Solve for x
    x = 69,184,565.64/8,950.78
  6. Step 6: Final answer
    x = 7,729.45

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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.