Home / 10,862.02-14,989.80-7,087.60

Finding the Fourth Proportional to 10,862.02, 14,989.80 and 7,087.60

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Solution

The fourth proportional to 10,862.02, 14,989.80 and 7,087.60 is: 9,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.02 : 14,989.80 = 7,087.60 : x
  2. Step 2: Convert to fraction form
    10,862.02/14,989.80 = 7,087.60/x
  3. Step 3: Cross multiply
    10,862.02x = 14,989.80 × 7,087.60
  4. Step 4: Simplify right side
    10,862.02x = 106,241,706.48
  5. Step 5: Solve for x
    x = 106,241,706.48/10,862.02
  6. Step 6: Final answer
    x = 9,781.03

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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.