Home / 10,055.78-15,084.40-3,392.30

Finding the Fourth Proportional to 10,055.78, 15,084.40 and 3,392.30

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Solution

The fourth proportional to 10,055.78, 15,084.40 and 3,392.30 is: 5,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.78 : 15,084.40 = 3,392.30 : x
  2. Step 2: Convert to fraction form
    10,055.78/15,084.40 = 3,392.30/x
  3. Step 3: Cross multiply
    10,055.78x = 15,084.40 × 3,392.30
  4. Step 4: Simplify right side
    10,055.78x = 51,170,810.12
  5. Step 5: Solve for x
    x = 51,170,810.12/10,055.78
  6. Step 6: Final answer
    x = 5,088.70

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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.