Home / 12,700.13-17,526.80-7,664.27

Finding the Fourth Proportional to 12,700.13, 17,526.80 and 7,664.27

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Solution

The fourth proportional to 12,700.13, 17,526.80 and 7,664.27 is: 10,577.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.13 : 17,526.80 = 7,664.27 : x
  2. Step 2: Convert to fraction form
    12,700.13/17,526.80 = 7,664.27/x
  3. Step 3: Cross multiply
    12,700.13x = 17,526.80 × 7,664.27
  4. Step 4: Simplify right side
    12,700.13x = 134,330,001.48
  5. Step 5: Solve for x
    x = 134,330,001.48/12,700.13
  6. Step 6: Final answer
    x = 10,577.06

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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.