Home / 10,300.86-14,210.10-6,939.36

Finding the Fourth Proportional to 10,300.86, 14,210.10 and 6,939.36

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Solution

The fourth proportional to 10,300.86, 14,210.10 and 6,939.36 is: 9,572.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,300.86 : 14,210.10 = 6,939.36 : x
  2. Step 2: Convert to fraction form
    10,300.86/14,210.10 = 6,939.36/x
  3. Step 3: Cross multiply
    10,300.86x = 14,210.10 × 6,939.36
  4. Step 4: Simplify right side
    10,300.86x = 98,608,999.54
  5. Step 5: Solve for x
    x = 98,608,999.54/10,300.86
  6. Step 6: Final answer
    x = 9,572.89

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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.