Home / 13,559.48-18,707.82-7,590.20

Finding the Fourth Proportional to 13,559.48, 18,707.82 and 7,590.20

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Solution

The fourth proportional to 13,559.48, 18,707.82 and 7,590.20 is: 10,472.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.48 : 18,707.82 = 7,590.20 : x
  2. Step 2: Convert to fraction form
    13,559.48/18,707.82 = 7,590.20/x
  3. Step 3: Cross multiply
    13,559.48x = 18,707.82 × 7,590.20
  4. Step 4: Simplify right side
    13,559.48x = 141,996,095.36
  5. Step 5: Solve for x
    x = 141,996,095.36/13,559.48
  6. Step 6: Final answer
    x = 10,472.09

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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.