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Finding the Fourth Proportional to 15,388.58, 23,074.66 and 7,985.58

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Solution

The fourth proportional to 15,388.58, 23,074.66 and 7,985.58 is: 11,974.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.58 : 23,074.66 = 7,985.58 : x
  2. Step 2: Convert to fraction form
    15,388.58/23,074.66 = 7,985.58/x
  3. Step 3: Cross multiply
    15,388.58x = 23,074.66 × 7,985.58
  4. Step 4: Simplify right side
    15,388.58x = 184,264,543.40
  5. Step 5: Solve for x
    x = 184,264,543.40/15,388.58
  6. Step 6: Final answer
    x = 11,974.11

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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.