Home / 15,655.02-21,604.19-8,485.17

Finding the Fourth Proportional to 15,655.02, 21,604.19 and 8,485.17

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Solution

The fourth proportional to 15,655.02, 21,604.19 and 8,485.17 is: 11,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.02 : 21,604.19 = 8,485.17 : x
  2. Step 2: Convert to fraction form
    15,655.02/21,604.19 = 8,485.17/x
  3. Step 3: Cross multiply
    15,655.02x = 21,604.19 × 8,485.17
  4. Step 4: Simplify right side
    15,655.02x = 183,315,224.86
  5. Step 5: Solve for x
    x = 183,315,224.86/15,655.02
  6. Step 6: Final answer
    x = 11,709.68

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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.