Home / 18,707.06-28,061.40-6,228.20

Finding the Fourth Proportional to 18,707.06, 28,061.40 and 6,228.20

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Solution

The fourth proportional to 18,707.06, 28,061.40 and 6,228.20 is: 9,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.06 : 28,061.40 = 6,228.20 : x
  2. Step 2: Convert to fraction form
    18,707.06/28,061.40 = 6,228.20/x
  3. Step 3: Cross multiply
    18,707.06x = 28,061.40 × 6,228.20
  4. Step 4: Simplify right side
    18,707.06x = 174,772,011.48
  5. Step 5: Solve for x
    x = 174,772,011.48/18,707.06
  6. Step 6: Final answer
    x = 9,342.57

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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.