Home / 13,529.39-18,669.85-7,559.89

Finding the Fourth Proportional to 13,529.39, 18,669.85 and 7,559.89

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Solution

The fourth proportional to 13,529.39, 18,669.85 and 7,559.89 is: 10,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.39 : 18,669.85 = 7,559.89 : x
  2. Step 2: Convert to fraction form
    13,529.39/18,669.85 = 7,559.89/x
  3. Step 3: Cross multiply
    13,529.39x = 18,669.85 × 7,559.89
  4. Step 4: Simplify right side
    13,529.39x = 141,141,946.74
  5. Step 5: Solve for x
    x = 141,141,946.74/13,529.39
  6. Step 6: Final answer
    x = 10,432.25

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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.