Home / 10,848.96-14,973.12-7,129.44

Finding the Fourth Proportional to 10,848.96, 14,973.12 and 7,129.44

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Solution

The fourth proportional to 10,848.96, 14,973.12 and 7,129.44 is: 9,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,848.96 : 14,973.12 = 7,129.44 : x
  2. Step 2: Convert to fraction form
    10,848.96/14,973.12 = 7,129.44/x
  3. Step 3: Cross multiply
    10,848.96x = 14,973.12 × 7,129.44
  4. Step 4: Simplify right side
    10,848.96x = 106,749,960.65
  5. Step 5: Solve for x
    x = 106,749,960.65/10,848.96
  6. Step 6: Final answer
    x = 9,839.65

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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.