Home / 10,686.06-14,753.07-7,709.58

Finding the Fourth Proportional to 10,686.06, 14,753.07 and 7,709.58

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Solution

The fourth proportional to 10,686.06, 14,753.07 and 7,709.58 is: 10,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.06 : 14,753.07 = 7,709.58 : x
  2. Step 2: Convert to fraction form
    10,686.06/14,753.07 = 7,709.58/x
  3. Step 3: Cross multiply
    10,686.06x = 14,753.07 × 7,709.58
  4. Step 4: Simplify right side
    10,686.06x = 113,739,973.41
  5. Step 5: Solve for x
    x = 113,739,973.41/10,686.06
  6. Step 6: Final answer
    x = 10,643.77

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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.