Home / 11,151.64-15,389.29-6,435.92

Finding the Fourth Proportional to 11,151.64, 15,389.29 and 6,435.92

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Solution

The fourth proportional to 11,151.64, 15,389.29 and 6,435.92 is: 8,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.64 : 15,389.29 = 6,435.92 : x
  2. Step 2: Convert to fraction form
    11,151.64/15,389.29 = 6,435.92/x
  3. Step 3: Cross multiply
    11,151.64x = 15,389.29 × 6,435.92
  4. Step 4: Simplify right side
    11,151.64x = 99,044,285.81
  5. Step 5: Solve for x
    x = 99,044,285.81/11,151.64
  6. Step 6: Final answer
    x = 8,881.59

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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.