Home / 15,768.48-23,656.80-5,380.32

Finding the Fourth Proportional to 15,768.48, 23,656.80 and 5,380.32

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Solution

The fourth proportional to 15,768.48, 23,656.80 and 5,380.32 is: 8,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.48 : 23,656.80 = 5,380.32 : x
  2. Step 2: Convert to fraction form
    15,768.48/23,656.80 = 5,380.32/x
  3. Step 3: Cross multiply
    15,768.48x = 23,656.80 × 5,380.32
  4. Step 4: Simplify right side
    15,768.48x = 127,281,154.18
  5. Step 5: Solve for x
    x = 127,281,154.18/15,768.48
  6. Step 6: Final answer
    x = 8,071.87

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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.