Home / 10,979.32-15,151.32-6,263.68

Finding the Fourth Proportional to 10,979.32, 15,151.32 and 6,263.68

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Solution

The fourth proportional to 10,979.32, 15,151.32 and 6,263.68 is: 8,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.32 : 15,151.32 = 6,263.68 : x
  2. Step 2: Convert to fraction form
    10,979.32/15,151.32 = 6,263.68/x
  3. Step 3: Cross multiply
    10,979.32x = 15,151.32 × 6,263.68
  4. Step 4: Simplify right side
    10,979.32x = 94,903,020.06
  5. Step 5: Solve for x
    x = 94,903,020.06/10,979.32
  6. Step 6: Final answer
    x = 8,643.80

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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.