Home / 15,390.38-23,068.86-7,883.64

Finding the Fourth Proportional to 15,390.38, 23,068.86 and 7,883.64

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Solution

The fourth proportional to 15,390.38, 23,068.86 and 7,883.64 is: 11,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.38 : 23,068.86 = 7,883.64 : x
  2. Step 2: Convert to fraction form
    15,390.38/23,068.86 = 7,883.64/x
  3. Step 3: Cross multiply
    15,390.38x = 23,068.86 × 7,883.64
  4. Step 4: Simplify right side
    15,390.38x = 181,866,587.45
  5. Step 5: Solve for x
    x = 181,866,587.45/15,390.38
  6. Step 6: Final answer
    x = 11,816.90

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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.