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Finding the Fourth Proportional to 7,859.04, 10,835.41 and 6,437.49

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Solution

The fourth proportional to 7,859.04, 10,835.41 and 6,437.49 is: 8,875.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.04 : 10,835.41 = 6,437.49 : x
  2. Step 2: Convert to fraction form
    7,859.04/10,835.41 = 6,437.49/x
  3. Step 3: Cross multiply
    7,859.04x = 10,835.41 × 6,437.49
  4. Step 4: Simplify right side
    7,859.04x = 69,752,843.52
  5. Step 5: Solve for x
    x = 69,752,843.52/7,859.04
  6. Step 6: Final answer
    x = 8,875.49

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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.