Home / 8,252.45-11,385.40-5,421.35

Finding the Fourth Proportional to 8,252.45, 11,385.40 and 5,421.35

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Solution

The fourth proportional to 8,252.45, 11,385.40 and 5,421.35 is: 7,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252.45 : 11,385.40 = 5,421.35 : x
  2. Step 2: Convert to fraction form
    8,252.45/11,385.40 = 5,421.35/x
  3. Step 3: Cross multiply
    8,252.45x = 11,385.40 × 5,421.35
  4. Step 4: Simplify right side
    8,252.45x = 61,724,238.29
  5. Step 5: Solve for x
    x = 61,724,238.29/8,252.45
  6. Step 6: Final answer
    x = 7,479.50

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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.