Home / 11,348.56-15,661.40-6,312.72

Finding the Fourth Proportional to 11,348.56, 15,661.40 and 6,312.72

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Solution

The fourth proportional to 11,348.56, 15,661.40 and 6,312.72 is: 8,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.56 : 15,661.40 = 6,312.72 : x
  2. Step 2: Convert to fraction form
    11,348.56/15,661.40 = 6,312.72/x
  3. Step 3: Cross multiply
    11,348.56x = 15,661.40 × 6,312.72
  4. Step 4: Simplify right side
    11,348.56x = 98,866,033.01
  5. Step 5: Solve for x
    x = 98,866,033.01/11,348.56
  6. Step 6: Final answer
    x = 8,711.77

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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.