Home / 15,617.40-21,549.46-8,903.16

Finding the Fourth Proportional to 15,617.40, 21,549.46 and 8,903.16

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Solution

The fourth proportional to 15,617.40, 21,549.46 and 8,903.16 is: 12,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.40 : 21,549.46 = 8,903.16 : x
  2. Step 2: Convert to fraction form
    15,617.40/21,549.46 = 8,903.16/x
  3. Step 3: Cross multiply
    15,617.40x = 21,549.46 × 8,903.16
  4. Step 4: Simplify right side
    15,617.40x = 191,858,290.29
  5. Step 5: Solve for x
    x = 191,858,290.29/15,617.40
  6. Step 6: Final answer
    x = 12,284.91

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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.