Home / 13,890.06-19,166.49-7,602.30

Finding the Fourth Proportional to 13,890.06, 19,166.49 and 7,602.30

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Solution

The fourth proportional to 13,890.06, 19,166.49 and 7,602.30 is: 10,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.06 : 19,166.49 = 7,602.30 : x
  2. Step 2: Convert to fraction form
    13,890.06/19,166.49 = 7,602.30/x
  3. Step 3: Cross multiply
    13,890.06x = 19,166.49 × 7,602.30
  4. Step 4: Simplify right side
    13,890.06x = 145,709,406.93
  5. Step 5: Solve for x
    x = 145,709,406.93/13,890.06
  6. Step 6: Final answer
    x = 10,490.19

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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.