Home / 9,129.16-12,593.40-6,291.59

Finding the Fourth Proportional to 9,129.16, 12,593.40 and 6,291.59

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Solution

The fourth proportional to 9,129.16, 12,593.40 and 6,291.59 is: 8,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.16 : 12,593.40 = 6,291.59 : x
  2. Step 2: Convert to fraction form
    9,129.16/12,593.40 = 6,291.59/x
  3. Step 3: Cross multiply
    9,129.16x = 12,593.40 × 6,291.59
  4. Step 4: Simplify right side
    9,129.16x = 79,232,509.51
  5. Step 5: Solve for x
    x = 79,232,509.51/9,129.16
  6. Step 6: Final answer
    x = 8,679.06

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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.