Home / 6,666.24-9,203.28-4,431.12

Finding the Fourth Proportional to 6,666.24, 9,203.28 and 4,431.12

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Solution

The fourth proportional to 6,666.24, 9,203.28 and 4,431.12 is: 6,117.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.24 : 9,203.28 = 4,431.12 : x
  2. Step 2: Convert to fraction form
    6,666.24/9,203.28 = 4,431.12/x
  3. Step 3: Cross multiply
    6,666.24x = 9,203.28 × 4,431.12
  4. Step 4: Simplify right side
    6,666.24x = 40,780,838.07
  5. Step 5: Solve for x
    x = 40,780,838.07/6,666.24
  6. Step 6: Final answer
    x = 6,117.52

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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.