Home / 8,487.45-11,712.51-4,710.40

Finding the Fourth Proportional to 8,487.45, 11,712.51 and 4,710.40

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Solution

The fourth proportional to 8,487.45, 11,712.51 and 4,710.40 is: 6,500.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.45 : 11,712.51 = 4,710.40 : x
  2. Step 2: Convert to fraction form
    8,487.45/11,712.51 = 4,710.40/x
  3. Step 3: Cross multiply
    8,487.45x = 11,712.51 × 4,710.40
  4. Step 4: Simplify right side
    8,487.45x = 55,170,577.82
  5. Step 5: Solve for x
    x = 55,170,577.82/8,487.45
  6. Step 6: Final answer
    x = 6,500.25

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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.