Home / 10,455.02-15,685.12-5,192.50

Finding the Fourth Proportional to 10,455.02, 15,685.12 and 5,192.50

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Solution

The fourth proportional to 10,455.02, 15,685.12 and 5,192.50 is: 7,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.02 : 15,685.12 = 5,192.50 : x
  2. Step 2: Convert to fraction form
    10,455.02/15,685.12 = 5,192.50/x
  3. Step 3: Cross multiply
    10,455.02x = 15,685.12 × 5,192.50
  4. Step 4: Simplify right side
    10,455.02x = 81,444,985.60
  5. Step 5: Solve for x
    x = 81,444,985.60/10,455.02
  6. Step 6: Final answer
    x = 7,790.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.