Home / 12,433.88-17,158.75-7,130.45

Finding the Fourth Proportional to 12,433.88, 17,158.75 and 7,130.45

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Solution

The fourth proportional to 12,433.88, 17,158.75 and 7,130.45 is: 9,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.88 : 17,158.75 = 7,130.45 : x
  2. Step 2: Convert to fraction form
    12,433.88/17,158.75 = 7,130.45/x
  3. Step 3: Cross multiply
    12,433.88x = 17,158.75 × 7,130.45
  4. Step 4: Simplify right side
    12,433.88x = 122,349,505.32
  5. Step 5: Solve for x
    x = 122,349,505.32/12,433.88
  6. Step 6: Final answer
    x = 9,840.01

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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.