Home / 12,561.76-17,335.43-6,897.03

Finding the Fourth Proportional to 12,561.76, 17,335.43 and 6,897.03

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Solution

The fourth proportional to 12,561.76, 17,335.43 and 6,897.03 is: 9,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.76 : 17,335.43 = 6,897.03 : x
  2. Step 2: Convert to fraction form
    12,561.76/17,335.43 = 6,897.03/x
  3. Step 3: Cross multiply
    12,561.76x = 17,335.43 × 6,897.03
  4. Step 4: Simplify right side
    12,561.76x = 119,562,859.61
  5. Step 5: Solve for x
    x = 119,562,859.61/12,561.76
  6. Step 6: Final answer
    x = 9,518.01

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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.