Home / 10,551.55-14,547.97-7,716.66

Finding the Fourth Proportional to 10,551.55, 14,547.97 and 7,716.66

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Solution

The fourth proportional to 10,551.55, 14,547.97 and 7,716.66 is: 10,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.55 : 14,547.97 = 7,716.66 : x
  2. Step 2: Convert to fraction form
    10,551.55/14,547.97 = 7,716.66/x
  3. Step 3: Cross multiply
    10,551.55x = 14,547.97 × 7,716.66
  4. Step 4: Simplify right side
    10,551.55x = 112,261,738.18
  5. Step 5: Solve for x
    x = 112,261,738.18/10,551.55
  6. Step 6: Final answer
    x = 10,639.36

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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.