Home / 15,549.42-21,458.34-9,176.16

Finding the Fourth Proportional to 15,549.42, 21,458.34 and 9,176.16

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Solution

The fourth proportional to 15,549.42, 21,458.34 and 9,176.16 is: 12,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.42 : 21,458.34 = 9,176.16 : x
  2. Step 2: Convert to fraction form
    15,549.42/21,458.34 = 9,176.16/x
  3. Step 3: Cross multiply
    15,549.42x = 21,458.34 × 9,176.16
  4. Step 4: Simplify right side
    15,549.42x = 196,905,161.17
  5. Step 5: Solve for x
    x = 196,905,161.17/15,549.42
  6. Step 6: Final answer
    x = 12,663.18

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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.