Home / 14,721.47-20,315.81-8,007.27

Finding the Fourth Proportional to 14,721.47, 20,315.81 and 8,007.27

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Solution

The fourth proportional to 14,721.47, 20,315.81 and 8,007.27 is: 11,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.47 : 20,315.81 = 8,007.27 : x
  2. Step 2: Convert to fraction form
    14,721.47/20,315.81 = 8,007.27/x
  3. Step 3: Cross multiply
    14,721.47x = 20,315.81 × 8,007.27
  4. Step 4: Simplify right side
    14,721.47x = 162,674,135.90
  5. Step 5: Solve for x
    x = 162,674,135.90/14,721.47
  6. Step 6: Final answer
    x = 11,050.13

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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.