Home / 15,390.12-23,091.28-7,999.24

Finding the Fourth Proportional to 15,390.12, 23,091.28 and 7,999.24

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Solution

The fourth proportional to 15,390.12, 23,091.28 and 7,999.24 is: 12,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.12 : 23,091.28 = 7,999.24 : x
  2. Step 2: Convert to fraction form
    15,390.12/23,091.28 = 7,999.24/x
  3. Step 3: Cross multiply
    15,390.12x = 23,091.28 × 7,999.24
  4. Step 4: Simplify right side
    15,390.12x = 184,712,690.63
  5. Step 5: Solve for x
    x = 184,712,690.63/15,390.12
  6. Step 6: Final answer
    x = 12,002.03

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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.