Home / 12,079.08-16,670.34-7,880.04

Finding the Fourth Proportional to 12,079.08, 16,670.34 and 7,880.04

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Solution

The fourth proportional to 12,079.08, 16,670.34 and 7,880.04 is: 10,875.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.08 : 16,670.34 = 7,880.04 : x
  2. Step 2: Convert to fraction form
    12,079.08/16,670.34 = 7,880.04/x
  3. Step 3: Cross multiply
    12,079.08x = 16,670.34 × 7,880.04
  4. Step 4: Simplify right side
    12,079.08x = 131,362,946.01
  5. Step 5: Solve for x
    x = 131,362,946.01/12,079.08
  6. Step 6: Final answer
    x = 10,875.24

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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.