Home / 10,140.54-13,981.20-7,753.44

Finding the Fourth Proportional to 10,140.54, 13,981.20 and 7,753.44

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Solution

The fourth proportional to 10,140.54, 13,981.20 and 7,753.44 is: 10,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.54 : 13,981.20 = 7,753.44 : x
  2. Step 2: Convert to fraction form
    10,140.54/13,981.20 = 7,753.44/x
  3. Step 3: Cross multiply
    10,140.54x = 13,981.20 × 7,753.44
  4. Step 4: Simplify right side
    10,140.54x = 108,402,395.33
  5. Step 5: Solve for x
    x = 108,402,395.33/10,140.54
  6. Step 6: Final answer
    x = 10,690.00

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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.