Home / 12,885.04-17,783.76-7,579.60

Finding the Fourth Proportional to 12,885.04, 17,783.76 and 7,579.60

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Solution

The fourth proportional to 12,885.04, 17,783.76 and 7,579.60 is: 10,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.04 : 17,783.76 = 7,579.60 : x
  2. Step 2: Convert to fraction form
    12,885.04/17,783.76 = 7,579.60/x
  3. Step 3: Cross multiply
    12,885.04x = 17,783.76 × 7,579.60
  4. Step 4: Simplify right side
    12,885.04x = 134,793,787.30
  5. Step 5: Solve for x
    x = 134,793,787.30/12,885.04
  6. Step 6: Final answer
    x = 10,461.26

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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.