Home / 7,688.10-11,532.15-4,768.05

Finding the Fourth Proportional to 7,688.10, 11,532.15 and 4,768.05

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Solution

The fourth proportional to 7,688.10, 11,532.15 and 4,768.05 is: 7,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.10 : 11,532.15 = 4,768.05 : x
  2. Step 2: Convert to fraction form
    7,688.10/11,532.15 = 4,768.05/x
  3. Step 3: Cross multiply
    7,688.10x = 11,532.15 × 4,768.05
  4. Step 4: Simplify right side
    7,688.10x = 54,985,867.81
  5. Step 5: Solve for x
    x = 54,985,867.81/7,688.10
  6. Step 6: Final answer
    x = 7,152.08

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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.