Home / 11,368.81-15,689.64-6,333.40

Finding the Fourth Proportional to 11,368.81, 15,689.64 and 6,333.40

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Solution

The fourth proportional to 11,368.81, 15,689.64 and 6,333.40 is: 8,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.81 : 15,689.64 = 6,333.40 : x
  2. Step 2: Convert to fraction form
    11,368.81/15,689.64 = 6,333.40/x
  3. Step 3: Cross multiply
    11,368.81x = 15,689.64 × 6,333.40
  4. Step 4: Simplify right side
    11,368.81x = 99,368,765.98
  5. Step 5: Solve for x
    x = 99,368,765.98/11,368.81
  6. Step 6: Final answer
    x = 8,740.47

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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.