Home / 13,084.02-18,055.90-7,115.70

Finding the Fourth Proportional to 13,084.02, 18,055.90 and 7,115.70

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Solution

The fourth proportional to 13,084.02, 18,055.90 and 7,115.70 is: 9,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.02 : 18,055.90 = 7,115.70 : x
  2. Step 2: Convert to fraction form
    13,084.02/18,055.90 = 7,115.70/x
  3. Step 3: Cross multiply
    13,084.02x = 18,055.90 × 7,115.70
  4. Step 4: Simplify right side
    13,084.02x = 128,480,367.63
  5. Step 5: Solve for x
    x = 128,480,367.63/13,084.02
  6. Step 6: Final answer
    x = 9,819.64

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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.