Home / 8,668.04-13,001.20-2,428.60

Finding the Fourth Proportional to 8,668.04, 13,001.20 and 2,428.60

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Solution

The fourth proportional to 8,668.04, 13,001.20 and 2,428.60 is: 3,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.04 : 13,001.20 = 2,428.60 : x
  2. Step 2: Convert to fraction form
    8,668.04/13,001.20 = 2,428.60/x
  3. Step 3: Cross multiply
    8,668.04x = 13,001.20 × 2,428.60
  4. Step 4: Simplify right side
    8,668.04x = 31,574,714.32
  5. Step 5: Solve for x
    x = 31,574,714.32/8,668.04
  6. Step 6: Final answer
    x = 3,642.66

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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.