Home / 13,927.50-19,220.00-7,554.20

Finding the Fourth Proportional to 13,927.50, 19,220.00 and 7,554.20

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Solution

The fourth proportional to 13,927.50, 19,220.00 and 7,554.20 is: 10,424.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.50 : 19,220.00 = 7,554.20 : x
  2. Step 2: Convert to fraction form
    13,927.50/19,220.00 = 7,554.20/x
  3. Step 3: Cross multiply
    13,927.50x = 19,220.00 × 7,554.20
  4. Step 4: Simplify right side
    13,927.50x = 145,191,590.13
  5. Step 5: Solve for x
    x = 145,191,590.13/13,927.50
  6. Step 6: Final answer
    x = 10,424.81

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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.