Home / 13,845.29-19,115.66-8,547.89

Finding the Fourth Proportional to 13,845.29, 19,115.66 and 8,547.89

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Solution

The fourth proportional to 13,845.29, 19,115.66 and 8,547.89 is: 11,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.29 : 19,115.66 = 8,547.89 : x
  2. Step 2: Convert to fraction form
    13,845.29/19,115.66 = 8,547.89/x
  3. Step 3: Cross multiply
    13,845.29x = 19,115.66 × 8,547.89
  4. Step 4: Simplify right side
    13,845.29x = 163,398,484.75
  5. Step 5: Solve for x
    x = 163,398,484.75/13,845.29
  6. Step 6: Final answer
    x = 11,801.74

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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.