Home / 13,590.04-18,755.12-7,540.52

Finding the Fourth Proportional to 13,590.04, 18,755.12 and 7,540.52

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Solution

The fourth proportional to 13,590.04, 18,755.12 and 7,540.52 is: 10,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.04 : 18,755.12 = 7,540.52 : x
  2. Step 2: Convert to fraction form
    13,590.04/18,755.12 = 7,540.52/x
  3. Step 3: Cross multiply
    13,590.04x = 18,755.12 × 7,540.52
  4. Step 4: Simplify right side
    13,590.04x = 141,423,357.46
  5. Step 5: Solve for x
    x = 141,423,357.46/13,590.04
  6. Step 6: Final answer
    x = 10,406.40

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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.