Home / 11,386.16-15,707.32-8,863.80

Finding the Fourth Proportional to 11,386.16, 15,707.32 and 8,863.80

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Solution

The fourth proportional to 11,386.16, 15,707.32 and 8,863.80 is: 12,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.16 : 15,707.32 = 8,863.80 : x
  2. Step 2: Convert to fraction form
    11,386.16/15,707.32 = 8,863.80/x
  3. Step 3: Cross multiply
    11,386.16x = 15,707.32 × 8,863.80
  4. Step 4: Simplify right side
    11,386.16x = 139,226,543.02
  5. Step 5: Solve for x
    x = 139,226,543.02/11,386.16
  6. Step 6: Final answer
    x = 12,227.70

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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.