Home / 12,729.42-17,566.70-7,064.19

Finding the Fourth Proportional to 12,729.42, 17,566.70 and 7,064.19

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Solution

The fourth proportional to 12,729.42, 17,566.70 and 7,064.19 is: 9,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.42 : 17,566.70 = 7,064.19 : x
  2. Step 2: Convert to fraction form
    12,729.42/17,566.70 = 7,064.19/x
  3. Step 3: Cross multiply
    12,729.42x = 17,566.70 × 7,064.19
  4. Step 4: Simplify right side
    12,729.42x = 124,094,506.47
  5. Step 5: Solve for x
    x = 124,094,506.47/12,729.42
  6. Step 6: Final answer
    x = 9,748.64

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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.