Home / 13,555.99-18,707.26-7,587.66

Finding the Fourth Proportional to 13,555.99, 18,707.26 and 7,587.66

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Solution

The fourth proportional to 13,555.99, 18,707.26 and 7,587.66 is: 10,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.99 : 18,707.26 = 7,587.66 : x
  2. Step 2: Convert to fraction form
    13,555.99/18,707.26 = 7,587.66/x
  3. Step 3: Cross multiply
    13,555.99x = 18,707.26 × 7,587.66
  4. Step 4: Simplify right side
    13,555.99x = 141,944,302.82
  5. Step 5: Solve for x
    x = 141,944,302.82/13,555.99
  6. Step 6: Final answer
    x = 10,470.96

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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.