Home / 15,280.74-21,088.62-8,994.30

Finding the Fourth Proportional to 15,280.74, 21,088.62 and 8,994.30

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Solution

The fourth proportional to 15,280.74, 21,088.62 and 8,994.30 is: 12,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.74 : 21,088.62 = 8,994.30 : x
  2. Step 2: Convert to fraction form
    15,280.74/21,088.62 = 8,994.30/x
  3. Step 3: Cross multiply
    15,280.74x = 21,088.62 × 8,994.30
  4. Step 4: Simplify right side
    15,280.74x = 189,677,374.87
  5. Step 5: Solve for x
    x = 189,677,374.87/15,280.74
  6. Step 6: Final answer
    x = 12,412.84

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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.