Home / 8,685.16-13,024.80-2,840.32

Finding the Fourth Proportional to 8,685.16, 13,024.80 and 2,840.32

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Solution

The fourth proportional to 8,685.16, 13,024.80 and 2,840.32 is: 4,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.16 : 13,024.80 = 2,840.32 : x
  2. Step 2: Convert to fraction form
    8,685.16/13,024.80 = 2,840.32/x
  3. Step 3: Cross multiply
    8,685.16x = 13,024.80 × 2,840.32
  4. Step 4: Simplify right side
    8,685.16x = 36,994,599.94
  5. Step 5: Solve for x
    x = 36,994,599.94/8,685.16
  6. Step 6: Final answer
    x = 4,259.52

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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.