Home / 7,688.16-10,611.18-4,501.80

Finding the Fourth Proportional to 7,688.16, 10,611.18 and 4,501.80

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Solution

The fourth proportional to 7,688.16, 10,611.18 and 4,501.80 is: 6,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.16 : 10,611.18 = 4,501.80 : x
  2. Step 2: Convert to fraction form
    7,688.16/10,611.18 = 4,501.80/x
  3. Step 3: Cross multiply
    7,688.16x = 10,611.18 × 4,501.80
  4. Step 4: Simplify right side
    7,688.16x = 47,769,410.12
  5. Step 5: Solve for x
    x = 47,769,410.12/7,688.16
  6. Step 6: Final answer
    x = 6,213.37

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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.