Home / 15,617.02-21,551.52-8,543.50

Finding the Fourth Proportional to 15,617.02, 21,551.52 and 8,543.50

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Solution

The fourth proportional to 15,617.02, 21,551.52 and 8,543.50 is: 11,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.02 : 21,551.52 = 8,543.50 : x
  2. Step 2: Convert to fraction form
    15,617.02/21,551.52 = 8,543.50/x
  3. Step 3: Cross multiply
    15,617.02x = 21,551.52 × 8,543.50
  4. Step 4: Simplify right side
    15,617.02x = 184,125,411.12
  5. Step 5: Solve for x
    x = 184,125,411.12/15,617.02
  6. Step 6: Final answer
    x = 11,790.05

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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.