Home / 8,990.46-13,482.96-2,985.34

Finding the Fourth Proportional to 8,990.46, 13,482.96 and 2,985.34

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Solution

The fourth proportional to 8,990.46, 13,482.96 and 2,985.34 is: 4,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.46 : 13,482.96 = 2,985.34 : x
  2. Step 2: Convert to fraction form
    8,990.46/13,482.96 = 2,985.34/x
  3. Step 3: Cross multiply
    8,990.46x = 13,482.96 × 2,985.34
  4. Step 4: Simplify right side
    8,990.46x = 40,251,219.81
  5. Step 5: Solve for x
    x = 40,251,219.81/8,990.46
  6. Step 6: Final answer
    x = 4,477.10

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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.