Home / 11,219.52-15,482.28-6,740.64

Finding the Fourth Proportional to 11,219.52, 15,482.28 and 6,740.64

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Solution

The fourth proportional to 11,219.52, 15,482.28 and 6,740.64 is: 9,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.52 : 15,482.28 = 6,740.64 : x
  2. Step 2: Convert to fraction form
    11,219.52/15,482.28 = 6,740.64/x
  3. Step 3: Cross multiply
    11,219.52x = 15,482.28 × 6,740.64
  4. Step 4: Simplify right side
    11,219.52x = 104,360,475.86
  5. Step 5: Solve for x
    x = 104,360,475.86/11,219.52
  6. Step 6: Final answer
    x = 9,301.69

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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.