Home / 15,007.07-20,707.98-8,956.20

Finding the Fourth Proportional to 15,007.07, 20,707.98 and 8,956.20

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Solution

The fourth proportional to 15,007.07, 20,707.98 and 8,956.20 is: 12,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.07 : 20,707.98 = 8,956.20 : x
  2. Step 2: Convert to fraction form
    15,007.07/20,707.98 = 8,956.20/x
  3. Step 3: Cross multiply
    15,007.07x = 20,707.98 × 8,956.20
  4. Step 4: Simplify right side
    15,007.07x = 185,464,705.01
  5. Step 5: Solve for x
    x = 185,464,705.01/15,007.07
  6. Step 6: Final answer
    x = 12,358.49

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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.