Home / 7,019.10-9,666.68-6,866.01

Finding the Fourth Proportional to 7,019.10, 9,666.68 and 6,866.01

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Solution

The fourth proportional to 7,019.10, 9,666.68 and 6,866.01 is: 9,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.10 : 9,666.68 = 6,866.01 : x
  2. Step 2: Convert to fraction form
    7,019.10/9,666.68 = 6,866.01/x
  3. Step 3: Cross multiply
    7,019.10x = 9,666.68 × 6,866.01
  4. Step 4: Simplify right side
    7,019.10x = 66,371,487.22
  5. Step 5: Solve for x
    x = 66,371,487.22/7,019.10
  6. Step 6: Final answer
    x = 9,455.84

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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.