Home / 8,688.96-11,990.84-4,710.08

Finding the Fourth Proportional to 8,688.96, 11,990.84 and 4,710.08

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Solution

The fourth proportional to 8,688.96, 11,990.84 and 4,710.08 is: 6,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.96 : 11,990.84 = 4,710.08 : x
  2. Step 2: Convert to fraction form
    8,688.96/11,990.84 = 4,710.08/x
  3. Step 3: Cross multiply
    8,688.96x = 11,990.84 × 4,710.08
  4. Step 4: Simplify right side
    8,688.96x = 56,477,732.16
  5. Step 5: Solve for x
    x = 56,477,732.16/8,688.96
  6. Step 6: Final answer
    x = 6,499.94

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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.