Home / 12,657.02-17,465.82-7,620.26

Finding the Fourth Proportional to 12,657.02, 17,465.82 and 7,620.26

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Solution

The fourth proportional to 12,657.02, 17,465.82 and 7,620.26 is: 10,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.02 : 17,465.82 = 7,620.26 : x
  2. Step 2: Convert to fraction form
    12,657.02/17,465.82 = 7,620.26/x
  3. Step 3: Cross multiply
    12,657.02x = 17,465.82 × 7,620.26
  4. Step 4: Simplify right side
    12,657.02x = 133,094,089.51
  5. Step 5: Solve for x
    x = 133,094,089.51/12,657.02
  6. Step 6: Final answer
    x = 10,515.44

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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.