Home / 10,508.72-14,509.44-6,979.28

Finding the Fourth Proportional to 10,508.72, 14,509.44 and 6,979.28

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Solution

The fourth proportional to 10,508.72, 14,509.44 and 6,979.28 is: 9,636.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.72 : 14,509.44 = 6,979.28 : x
  2. Step 2: Convert to fraction form
    10,508.72/14,509.44 = 6,979.28/x
  3. Step 3: Cross multiply
    10,508.72x = 14,509.44 × 6,979.28
  4. Step 4: Simplify right side
    10,508.72x = 101,265,444.40
  5. Step 5: Solve for x
    x = 101,265,444.40/10,508.72
  6. Step 6: Final answer
    x = 9,636.33

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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.