Home / 15,980.16-22,052.74-8,907.04

Finding the Fourth Proportional to 15,980.16, 22,052.74 and 8,907.04

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Solution

The fourth proportional to 15,980.16, 22,052.74 and 8,907.04 is: 12,291.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.16 : 22,052.74 = 8,907.04 : x
  2. Step 2: Convert to fraction form
    15,980.16/22,052.74 = 8,907.04/x
  3. Step 3: Cross multiply
    15,980.16x = 22,052.74 × 8,907.04
  4. Step 4: Simplify right side
    15,980.16x = 196,424,637.29
  5. Step 5: Solve for x
    x = 196,424,637.29/15,980.16
  6. Step 6: Final answer
    x = 12,291.78

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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.