Home / 13,988.54-19,302.02-8,957.22

Finding the Fourth Proportional to 13,988.54, 19,302.02 and 8,957.22

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Solution

The fourth proportional to 13,988.54, 19,302.02 and 8,957.22 is: 12,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.54 : 19,302.02 = 8,957.22 : x
  2. Step 2: Convert to fraction form
    13,988.54/19,302.02 = 8,957.22/x
  3. Step 3: Cross multiply
    13,988.54x = 19,302.02 × 8,957.22
  4. Step 4: Simplify right side
    13,988.54x = 172,892,439.58
  5. Step 5: Solve for x
    x = 172,892,439.58/13,988.54
  6. Step 6: Final answer
    x = 12,359.58

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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.