Home / 13,459.13-18,577.79-9,208.59

Finding the Fourth Proportional to 13,459.13, 18,577.79 and 9,208.59

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Solution

The fourth proportional to 13,459.13, 18,577.79 and 9,208.59 is: 12,710.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.13 : 18,577.79 = 9,208.59 : x
  2. Step 2: Convert to fraction form
    13,459.13/18,577.79 = 9,208.59/x
  3. Step 3: Cross multiply
    13,459.13x = 18,577.79 × 9,208.59
  4. Step 4: Simplify right side
    13,459.13x = 171,075,170.04
  5. Step 5: Solve for x
    x = 171,075,170.04/13,459.13
  6. Step 6: Final answer
    x = 12,710.72

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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.