Home / 16,988.61-25,485.09-9,876.18

Finding the Fourth Proportional to 16,988.61, 25,485.09 and 9,876.18

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Solution

The fourth proportional to 16,988.61, 25,485.09 and 9,876.18 is: 14,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.61 : 25,485.09 = 9,876.18 : x
  2. Step 2: Convert to fraction form
    16,988.61/25,485.09 = 9,876.18/x
  3. Step 3: Cross multiply
    16,988.61x = 25,485.09 × 9,876.18
  4. Step 4: Simplify right side
    16,988.61x = 251,695,336.16
  5. Step 5: Solve for x
    x = 251,695,336.16/16,988.61
  6. Step 6: Final answer
    x = 14,815.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.