Home / 10,005.88-15,005.52-4,740.16

Finding the Fourth Proportional to 10,005.88, 15,005.52 and 4,740.16

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Solution

The fourth proportional to 10,005.88, 15,005.52 and 4,740.16 is: 7,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.88 : 15,005.52 = 4,740.16 : x
  2. Step 2: Convert to fraction form
    10,005.88/15,005.52 = 4,740.16/x
  3. Step 3: Cross multiply
    10,005.88x = 15,005.52 × 4,740.16
  4. Step 4: Simplify right side
    10,005.88x = 71,128,565.68
  5. Step 5: Solve for x
    x = 71,128,565.68/10,005.88
  6. Step 6: Final answer
    x = 7,108.68

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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.