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Finding the Fourth Proportional to 8,730.59, 13,095.88 and 7,429.32

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Solution

The fourth proportional to 8,730.59, 13,095.88 and 7,429.32 is: 11,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.59 : 13,095.88 = 7,429.32 : x
  2. Step 2: Convert to fraction form
    8,730.59/13,095.88 = 7,429.32/x
  3. Step 3: Cross multiply
    8,730.59x = 13,095.88 × 7,429.32
  4. Step 4: Simplify right side
    8,730.59x = 97,293,464.63
  5. Step 5: Solve for x
    x = 97,293,464.63/8,730.59
  6. Step 6: Final answer
    x = 11,143.98

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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.