Home / 10,448.52-15,677.64-9,991.68

Finding the Fourth Proportional to 10,448.52, 15,677.64 and 9,991.68

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Solution

The fourth proportional to 10,448.52, 15,677.64 and 9,991.68 is: 14,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,448.52 : 15,677.64 = 9,991.68 : x
  2. Step 2: Convert to fraction form
    10,448.52/15,677.64 = 9,991.68/x
  3. Step 3: Cross multiply
    10,448.52x = 15,677.64 × 9,991.68
  4. Step 4: Simplify right side
    10,448.52x = 156,645,962.04
  5. Step 5: Solve for x
    x = 156,645,962.04/10,448.52
  6. Step 6: Final answer
    x = 14,992.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.