Home / 16,931.98-23,365.92-9,378.28

Finding the Fourth Proportional to 16,931.98, 23,365.92 and 9,378.28

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Solution

The fourth proportional to 16,931.98, 23,365.92 and 9,378.28 is: 12,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.98 : 23,365.92 = 9,378.28 : x
  2. Step 2: Convert to fraction form
    16,931.98/23,365.92 = 9,378.28/x
  3. Step 3: Cross multiply
    16,931.98x = 23,365.92 × 9,378.28
  4. Step 4: Simplify right side
    16,931.98x = 219,132,140.22
  5. Step 5: Solve for x
    x = 219,132,140.22/16,931.98
  6. Step 6: Final answer
    x = 12,941.91

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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.