Home / 8,688.83-11,990.64-4,710

Finding the Fourth Proportional to 8,688.83, 11,990.64 and 4,710

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Solution

The fourth proportional to 8,688.83, 11,990.64 and 4,710 is: 6,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.83 : 11,990.64 = 4,710 : x
  2. Step 2: Convert to fraction form
    8,688.83/11,990.64 = 4,710/x
  3. Step 3: Cross multiply
    8,688.83x = 11,990.64 × 4,710
  4. Step 4: Simplify right side
    8,688.83x = 56,475,914.40
  5. Step 5: Solve for x
    x = 56,475,914.40/8,688.83
  6. Step 6: Final answer
    x = 6,499.83

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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.