Home / 10,242.02-14,135.79-9,774.55

Finding the Fourth Proportional to 10,242.02, 14,135.79 and 9,774.55

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Solution

The fourth proportional to 10,242.02, 14,135.79 and 9,774.55 is: 13,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.02 : 14,135.79 = 9,774.55 : x
  2. Step 2: Convert to fraction form
    10,242.02/14,135.79 = 9,774.55/x
  3. Step 3: Cross multiply
    10,242.02x = 14,135.79 × 9,774.55
  4. Step 4: Simplify right side
    10,242.02x = 138,170,986.14
  5. Step 5: Solve for x
    x = 138,170,986.14/10,242.02
  6. Step 6: Final answer
    x = 13,490.60

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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.