Home / 15,632.60-21,570.36-9,170.06

Finding the Fourth Proportional to 15,632.60, 21,570.36 and 9,170.06

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Solution

The fourth proportional to 15,632.60, 21,570.36 and 9,170.06 is: 12,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.60 : 21,570.36 = 9,170.06 : x
  2. Step 2: Convert to fraction form
    15,632.60/21,570.36 = 9,170.06/x
  3. Step 3: Cross multiply
    15,632.60x = 21,570.36 × 9,170.06
  4. Step 4: Simplify right side
    15,632.60x = 197,801,495.42
  5. Step 5: Solve for x
    x = 197,801,495.42/15,632.60
  6. Step 6: Final answer
    x = 12,653.14

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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.