Home / 14,762.40-20,379.51-9,390.24

Finding the Fourth Proportional to 14,762.40, 20,379.51 and 9,390.24

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Solution

The fourth proportional to 14,762.40, 20,379.51 and 9,390.24 is: 12,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.40 : 20,379.51 = 9,390.24 : x
  2. Step 2: Convert to fraction form
    14,762.40/20,379.51 = 9,390.24/x
  3. Step 3: Cross multiply
    14,762.40x = 20,379.51 × 9,390.24
  4. Step 4: Simplify right side
    14,762.40x = 191,368,489.98
  5. Step 5: Solve for x
    x = 191,368,489.98/14,762.40
  6. Step 6: Final answer
    x = 12,963.24

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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.