Home / 15,017.95-20,725.02-8,730.32

Finding the Fourth Proportional to 15,017.95, 20,725.02 and 8,730.32

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Solution

The fourth proportional to 15,017.95, 20,725.02 and 8,730.32 is: 12,047.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.95 : 20,725.02 = 8,730.32 : x
  2. Step 2: Convert to fraction form
    15,017.95/20,725.02 = 8,730.32/x
  3. Step 3: Cross multiply
    15,017.95x = 20,725.02 × 8,730.32
  4. Step 4: Simplify right side
    15,017.95x = 180,936,108.42
  5. Step 5: Solve for x
    x = 180,936,108.42/15,017.95
  6. Step 6: Final answer
    x = 12,047.99

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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.