Home / 15,783.02-21,773.95-11,070.38

Finding the Fourth Proportional to 15,783.02, 21,773.95 and 11,070.38

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Solution

The fourth proportional to 15,783.02, 21,773.95 and 11,070.38 is: 15,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.02 : 21,773.95 = 11,070.38 : x
  2. Step 2: Convert to fraction form
    15,783.02/21,773.95 = 11,070.38/x
  3. Step 3: Cross multiply
    15,783.02x = 21,773.95 × 11,070.38
  4. Step 4: Simplify right side
    15,783.02x = 241,045,900.60
  5. Step 5: Solve for x
    x = 241,045,900.60/15,783.02
  6. Step 6: Final answer
    x = 15,272.48

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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.