Home / 12,437.04-17,157.72-7,130.64

Finding the Fourth Proportional to 12,437.04, 17,157.72 and 7,130.64

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Solution

The fourth proportional to 12,437.04, 17,157.72 and 7,130.64 is: 9,837.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.04 : 17,157.72 = 7,130.64 : x
  2. Step 2: Convert to fraction form
    12,437.04/17,157.72 = 7,130.64/x
  3. Step 3: Cross multiply
    12,437.04x = 17,157.72 × 7,130.64
  4. Step 4: Simplify right side
    12,437.04x = 122,345,524.54
  5. Step 5: Solve for x
    x = 122,345,524.54/12,437.04
  6. Step 6: Final answer
    x = 9,837.19

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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.