Home / 7,688.39-11,526.67-3,525.40

Finding the Fourth Proportional to 7,688.39, 11,526.67 and 3,525.40

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Solution

The fourth proportional to 7,688.39, 11,526.67 and 3,525.40 is: 5,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.39 : 11,526.67 = 3,525.40 : x
  2. Step 2: Convert to fraction form
    7,688.39/11,526.67 = 3,525.40/x
  3. Step 3: Cross multiply
    7,688.39x = 11,526.67 × 3,525.40
  4. Step 4: Simplify right side
    7,688.39x = 40,636,122.42
  5. Step 5: Solve for x
    x = 40,636,122.42/7,688.39
  6. Step 6: Final answer
    x = 5,285.39

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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.