Home / 13,553.40-18,703.02-7,585.08

Finding the Fourth Proportional to 13,553.40, 18,703.02 and 7,585.08

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Solution

The fourth proportional to 13,553.40, 18,703.02 and 7,585.08 is: 10,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.40 : 18,703.02 = 7,585.08 : x
  2. Step 2: Convert to fraction form
    13,553.40/18,703.02 = 7,585.08/x
  3. Step 3: Cross multiply
    13,553.40x = 18,703.02 × 7,585.08
  4. Step 4: Simplify right side
    13,553.40x = 141,863,902.94
  5. Step 5: Solve for x
    x = 141,863,902.94/13,553.40
  6. Step 6: Final answer
    x = 10,467.03

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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.