Home / 15,435.02-21,300.24-8,722.82

Finding the Fourth Proportional to 15,435.02, 21,300.24 and 8,722.82

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Solution

The fourth proportional to 15,435.02, 21,300.24 and 8,722.82 is: 12,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.02 : 21,300.24 = 8,722.82 : x
  2. Step 2: Convert to fraction form
    15,435.02/21,300.24 = 8,722.82/x
  3. Step 3: Cross multiply
    15,435.02x = 21,300.24 × 8,722.82
  4. Step 4: Simplify right side
    15,435.02x = 185,798,159.48
  5. Step 5: Solve for x
    x = 185,798,159.48/15,435.02
  6. Step 6: Final answer
    x = 12,037.44

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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.