Home / 15,706.02-21,661.26-10,401.30

Finding the Fourth Proportional to 15,706.02, 21,661.26 and 10,401.30

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Solution

The fourth proportional to 15,706.02, 21,661.26 and 10,401.30 is: 14,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.02 : 21,661.26 = 10,401.30 : x
  2. Step 2: Convert to fraction form
    15,706.02/21,661.26 = 10,401.30/x
  3. Step 3: Cross multiply
    15,706.02x = 21,661.26 × 10,401.30
  4. Step 4: Simplify right side
    15,706.02x = 225,305,263.64
  5. Step 5: Solve for x
    x = 225,305,263.64/15,706.02
  6. Step 6: Final answer
    x = 14,345.15

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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.