Home / 15,790.72-23,678.40-9,219.04

Finding the Fourth Proportional to 15,790.72, 23,678.40 and 9,219.04

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Solution

The fourth proportional to 15,790.72, 23,678.40 and 9,219.04 is: 13,824.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.72 : 23,678.40 = 9,219.04 : x
  2. Step 2: Convert to fraction form
    15,790.72/23,678.40 = 9,219.04/x
  3. Step 3: Cross multiply
    15,790.72x = 23,678.40 × 9,219.04
  4. Step 4: Simplify right side
    15,790.72x = 218,292,116.74
  5. Step 5: Solve for x
    x = 218,292,116.74/15,790.72
  6. Step 6: Final answer
    x = 13,824.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.