Home / 13,554.78-18,705.96-7,587.48

Finding the Fourth Proportional to 13,554.78, 18,705.96 and 7,587.48

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Solution

The fourth proportional to 13,554.78, 18,705.96 and 7,587.48 is: 10,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.78 : 18,705.96 = 7,587.48 : x
  2. Step 2: Convert to fraction form
    13,554.78/18,705.96 = 7,587.48/x
  3. Step 3: Cross multiply
    13,554.78x = 18,705.96 × 7,587.48
  4. Step 4: Simplify right side
    13,554.78x = 141,931,097.38
  5. Step 5: Solve for x
    x = 141,931,097.38/13,554.78
  6. Step 6: Final answer
    x = 10,470.93

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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.