Home / 11,775.04-17,629.60-8,645.20

Finding the Fourth Proportional to 11,775.04, 17,629.60 and 8,645.20

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Solution

The fourth proportional to 11,775.04, 17,629.60 and 8,645.20 is: 12,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.04 : 17,629.60 = 8,645.20 : x
  2. Step 2: Convert to fraction form
    11,775.04/17,629.60 = 8,645.20/x
  3. Step 3: Cross multiply
    11,775.04x = 17,629.60 × 8,645.20
  4. Step 4: Simplify right side
    11,775.04x = 152,411,417.92
  5. Step 5: Solve for x
    x = 152,411,417.92/11,775.04
  6. Step 6: Final answer
    x = 12,943.60

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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.