Home / 13,838.06-19,084.65-9,117.38

Finding the Fourth Proportional to 13,838.06, 19,084.65 and 9,117.38

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Solution

The fourth proportional to 13,838.06, 19,084.65 and 9,117.38 is: 12,574.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.06 : 19,084.65 = 9,117.38 : x
  2. Step 2: Convert to fraction form
    13,838.06/19,084.65 = 9,117.38/x
  3. Step 3: Cross multiply
    13,838.06x = 19,084.65 × 9,117.38
  4. Step 4: Simplify right side
    13,838.06x = 174,001,910.79
  5. Step 5: Solve for x
    x = 174,001,910.79/13,838.06
  6. Step 6: Final answer
    x = 12,574.16

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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.