Home / 13,530.15-18,670.86-7,560.63

Finding the Fourth Proportional to 13,530.15, 18,670.86 and 7,560.63

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Solution

The fourth proportional to 13,530.15, 18,670.86 and 7,560.63 is: 10,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.15 : 18,670.86 = 7,560.63 : x
  2. Step 2: Convert to fraction form
    13,530.15/18,670.86 = 7,560.63/x
  3. Step 3: Cross multiply
    13,530.15x = 18,670.86 × 7,560.63
  4. Step 4: Simplify right side
    13,530.15x = 141,163,464.24
  5. Step 5: Solve for x
    x = 141,163,464.24/13,530.15
  6. Step 6: Final answer
    x = 10,433.25

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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.