Home / 13,590.80-18,763.08-9,348.24

Finding the Fourth Proportional to 13,590.80, 18,763.08 and 9,348.24

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Solution

The fourth proportional to 13,590.80, 18,763.08 and 9,348.24 is: 12,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.80 : 18,763.08 = 9,348.24 : x
  2. Step 2: Convert to fraction form
    13,590.80/18,763.08 = 9,348.24/x
  3. Step 3: Cross multiply
    13,590.80x = 18,763.08 × 9,348.24
  4. Step 4: Simplify right side
    13,590.80x = 175,401,774.98
  5. Step 5: Solve for x
    x = 175,401,774.98/13,590.80
  6. Step 6: Final answer
    x = 12,905.92

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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.