Home / 15,486.22-21,380.93-10,649.00

Finding the Fourth Proportional to 15,486.22, 21,380.93 and 10,649.00

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Solution

The fourth proportional to 15,486.22, 21,380.93 and 10,649.00 is: 14,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.22 : 21,380.93 = 10,649.00 : x
  2. Step 2: Convert to fraction form
    15,486.22/21,380.93 = 10,649.00/x
  3. Step 3: Cross multiply
    15,486.22x = 21,380.93 × 10,649.00
  4. Step 4: Simplify right side
    15,486.22x = 227,685,563.71
  5. Step 5: Solve for x
    x = 227,685,563.71/15,486.22
  6. Step 6: Final answer
    x = 14,702.46

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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.