Home / 15,077.04-20,809.35-8,707.81

Finding the Fourth Proportional to 15,077.04, 20,809.35 and 8,707.81

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Solution

The fourth proportional to 15,077.04, 20,809.35 and 8,707.81 is: 12,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.04 : 20,809.35 = 8,707.81 : x
  2. Step 2: Convert to fraction form
    15,077.04/20,809.35 = 8,707.81/x
  3. Step 3: Cross multiply
    15,077.04x = 20,809.35 × 8,707.81
  4. Step 4: Simplify right side
    15,077.04x = 181,203,718.44
  5. Step 5: Solve for x
    x = 181,203,718.44/15,077.04
  6. Step 6: Final answer
    x = 12,018.52

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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.