Home / 10,980.95-15,149.77-6,262.49

Finding the Fourth Proportional to 10,980.95, 15,149.77 and 6,262.49

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Solution

The fourth proportional to 10,980.95, 15,149.77 and 6,262.49 is: 8,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.95 : 15,149.77 = 6,262.49 : x
  2. Step 2: Convert to fraction form
    10,980.95/15,149.77 = 6,262.49/x
  3. Step 3: Cross multiply
    10,980.95x = 15,149.77 × 6,262.49
  4. Step 4: Simplify right side
    10,980.95x = 94,875,305.35
  5. Step 5: Solve for x
    x = 94,875,305.35/10,980.95
  6. Step 6: Final answer
    x = 8,639.99

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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.