Home / 18,055.30-24,915.28-9,988.48

Finding the Fourth Proportional to 18,055.30, 24,915.28 and 9,988.48

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Solution

The fourth proportional to 18,055.30, 24,915.28 and 9,988.48 is: 13,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.30 : 24,915.28 = 9,988.48 : x
  2. Step 2: Convert to fraction form
    18,055.30/24,915.28 = 9,988.48/x
  3. Step 3: Cross multiply
    18,055.30x = 24,915.28 × 9,988.48
  4. Step 4: Simplify right side
    18,055.30x = 248,865,775.97
  5. Step 5: Solve for x
    x = 248,865,775.97/18,055.30
  6. Step 6: Final answer
    x = 13,783.53

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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.