Home / 11,580.28-15,980.76-6,275.10

Finding the Fourth Proportional to 11,580.28, 15,980.76 and 6,275.10

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Solution

The fourth proportional to 11,580.28, 15,980.76 and 6,275.10 is: 8,659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.28 : 15,980.76 = 6,275.10 : x
  2. Step 2: Convert to fraction form
    11,580.28/15,980.76 = 6,275.10/x
  3. Step 3: Cross multiply
    11,580.28x = 15,980.76 × 6,275.10
  4. Step 4: Simplify right side
    11,580.28x = 100,280,927.00
  5. Step 5: Solve for x
    x = 100,280,927.00/11,580.28
  6. Step 6: Final answer
    x = 8,659.63

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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.