Home / 9,577.86-13,208.16-6,391.28

Finding the Fourth Proportional to 9,577.86, 13,208.16 and 6,391.28

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Solution

The fourth proportional to 9,577.86, 13,208.16 and 6,391.28 is: 8,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,577.86 : 13,208.16 = 6,391.28 : x
  2. Step 2: Convert to fraction form
    9,577.86/13,208.16 = 6,391.28/x
  3. Step 3: Cross multiply
    9,577.86x = 13,208.16 × 6,391.28
  4. Step 4: Simplify right side
    9,577.86x = 84,417,048.84
  5. Step 5: Solve for x
    x = 84,417,048.84/9,577.86
  6. Step 6: Final answer
    x = 8,813.77

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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.