Home / 11,386.32-15,716.88-6,670.50

Finding the Fourth Proportional to 11,386.32, 15,716.88 and 6,670.50

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Solution

The fourth proportional to 11,386.32, 15,716.88 and 6,670.50 is: 9,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.32 : 15,716.88 = 6,670.50 : x
  2. Step 2: Convert to fraction form
    11,386.32/15,716.88 = 6,670.50/x
  3. Step 3: Cross multiply
    11,386.32x = 15,716.88 × 6,670.50
  4. Step 4: Simplify right side
    11,386.32x = 104,839,448.04
  5. Step 5: Solve for x
    x = 104,839,448.04/11,386.32
  6. Step 6: Final answer
    x = 9,207.49

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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.