Home / 15,823.72-21,836.08-9,110.04

Finding the Fourth Proportional to 15,823.72, 21,836.08 and 9,110.04

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Solution

The fourth proportional to 15,823.72, 21,836.08 and 9,110.04 is: 12,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.72 : 21,836.08 = 9,110.04 : x
  2. Step 2: Convert to fraction form
    15,823.72/21,836.08 = 9,110.04/x
  3. Step 3: Cross multiply
    15,823.72x = 21,836.08 × 9,110.04
  4. Step 4: Simplify right side
    15,823.72x = 198,927,407.51
  5. Step 5: Solve for x
    x = 198,927,407.51/15,823.72
  6. Step 6: Final answer
    x = 12,571.47

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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.