Home / 42,680.04-64,012.76-11,508

Finding the Fourth Proportional to 42,680.04, 64,012.76 and 11,508

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Solution

The fourth proportional to 42,680.04, 64,012.76 and 11,508 is: 17,260.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,680.04 : 64,012.76 = 11,508 : x
  2. Step 2: Convert to fraction form
    42,680.04/64,012.76 = 11,508/x
  3. Step 3: Cross multiply
    42,680.04x = 64,012.76 × 11,508
  4. Step 4: Simplify right side
    42,680.04x = 736,658,842.08
  5. Step 5: Solve for x
    x = 736,658,842.08/42,680.04
  6. Step 6: Final answer
    x = 17,260.03

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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.