Home / 10,865.80-14,973.30-7,713.16

Finding the Fourth Proportional to 10,865.80, 14,973.30 and 7,713.16

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Solution

The fourth proportional to 10,865.80, 14,973.30 and 7,713.16 is: 10,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.80 : 14,973.30 = 7,713.16 : x
  2. Step 2: Convert to fraction form
    10,865.80/14,973.30 = 7,713.16/x
  3. Step 3: Cross multiply
    10,865.80x = 14,973.30 × 7,713.16
  4. Step 4: Simplify right side
    10,865.80x = 115,491,458.63
  5. Step 5: Solve for x
    x = 115,491,458.63/10,865.80
  6. Step 6: Final answer
    x = 10,628.90

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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.