Home / 12,632.85-17,430.66-7,326.99

Finding the Fourth Proportional to 12,632.85, 17,430.66 and 7,326.99

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Solution

The fourth proportional to 12,632.85, 17,430.66 and 7,326.99 is: 10,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.85 : 17,430.66 = 7,326.99 : x
  2. Step 2: Convert to fraction form
    12,632.85/17,430.66 = 7,326.99/x
  3. Step 3: Cross multiply
    12,632.85x = 17,430.66 × 7,326.99
  4. Step 4: Simplify right side
    12,632.85x = 127,714,271.51
  5. Step 5: Solve for x
    x = 127,714,271.51/12,632.85
  6. Step 6: Final answer
    x = 10,109.70

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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.