Home / 10,270.08-14,172.75-5,554.40

Finding the Fourth Proportional to 10,270.08, 14,172.75 and 5,554.40

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Solution

The fourth proportional to 10,270.08, 14,172.75 and 5,554.40 is: 7,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.08 : 14,172.75 = 5,554.40 : x
  2. Step 2: Convert to fraction form
    10,270.08/14,172.75 = 5,554.40/x
  3. Step 3: Cross multiply
    10,270.08x = 14,172.75 × 5,554.40
  4. Step 4: Simplify right side
    10,270.08x = 78,721,051.74
  5. Step 5: Solve for x
    x = 78,721,051.74/10,270.08
  6. Step 6: Final answer
    x = 7,665.09

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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.