Home / 11,276.34-15,561.38-6,240.91

Finding the Fourth Proportional to 11,276.34, 15,561.38 and 6,240.91

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Solution

The fourth proportional to 11,276.34, 15,561.38 and 6,240.91 is: 8,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.34 : 15,561.38 = 6,240.91 : x
  2. Step 2: Convert to fraction form
    11,276.34/15,561.38 = 6,240.91/x
  3. Step 3: Cross multiply
    11,276.34x = 15,561.38 × 6,240.91
  4. Step 4: Simplify right side
    11,276.34x = 97,117,125.35
  5. Step 5: Solve for x
    x = 97,117,125.35/11,276.34
  6. Step 6: Final answer
    x = 8,612.47

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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.