Home / 13,760.77-18,989.90-7,473.01

Finding the Fourth Proportional to 13,760.77, 18,989.90 and 7,473.01

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Solution

The fourth proportional to 13,760.77, 18,989.90 and 7,473.01 is: 10,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.77 : 18,989.90 = 7,473.01 : x
  2. Step 2: Convert to fraction form
    13,760.77/18,989.90 = 7,473.01/x
  3. Step 3: Cross multiply
    13,760.77x = 18,989.90 × 7,473.01
  4. Step 4: Simplify right side
    13,760.77x = 141,911,712.60
  5. Step 5: Solve for x
    x = 141,911,712.60/13,760.77
  6. Step 6: Final answer
    x = 10,312.77

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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.