Home / 13,551.68-18,700.80-7,582.79

Finding the Fourth Proportional to 13,551.68, 18,700.80 and 7,582.79

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Solution

The fourth proportional to 13,551.68, 18,700.80 and 7,582.79 is: 10,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.68 : 18,700.80 = 7,582.79 : x
  2. Step 2: Convert to fraction form
    13,551.68/18,700.80 = 7,582.79/x
  3. Step 3: Cross multiply
    13,551.68x = 18,700.80 × 7,582.79
  4. Step 4: Simplify right side
    13,551.68x = 141,804,239.23
  5. Step 5: Solve for x
    x = 141,804,239.23/13,551.68
  6. Step 6: Final answer
    x = 10,463.96

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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.