Home / 11,368.40-15,689.54-6,332.64

Finding the Fourth Proportional to 11,368.40, 15,689.54 and 6,332.64

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Solution

The fourth proportional to 11,368.40, 15,689.54 and 6,332.64 is: 8,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.40 : 15,689.54 = 6,332.64 : x
  2. Step 2: Convert to fraction form
    11,368.40/15,689.54 = 6,332.64/x
  3. Step 3: Cross multiply
    11,368.40x = 15,689.54 × 6,332.64
  4. Step 4: Simplify right side
    11,368.40x = 99,356,208.59
  5. Step 5: Solve for x
    x = 99,356,208.59/11,368.40
  6. Step 6: Final answer
    x = 8,739.68

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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.