Home / 14,180.80-21,279.30-9,801.40

Finding the Fourth Proportional to 14,180.80, 21,279.30 and 9,801.40

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Solution

The fourth proportional to 14,180.80, 21,279.30 and 9,801.40 is: 14,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.80 : 21,279.30 = 9,801.40 : x
  2. Step 2: Convert to fraction form
    14,180.80/21,279.30 = 9,801.40/x
  3. Step 3: Cross multiply
    14,180.80x = 21,279.30 × 9,801.40
  4. Step 4: Simplify right side
    14,180.80x = 208,566,931.02
  5. Step 5: Solve for x
    x = 208,566,931.02/14,180.80
  6. Step 6: Final answer
    x = 14,707.70

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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.