Home / 13,525.04-18,661.35-7,856.43

Finding the Fourth Proportional to 13,525.04, 18,661.35 and 7,856.43

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Solution

The fourth proportional to 13,525.04, 18,661.35 and 7,856.43 is: 10,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.04 : 18,661.35 = 7,856.43 : x
  2. Step 2: Convert to fraction form
    13,525.04/18,661.35 = 7,856.43/x
  3. Step 3: Cross multiply
    13,525.04x = 18,661.35 × 7,856.43
  4. Step 4: Simplify right side
    13,525.04x = 146,611,549.46
  5. Step 5: Solve for x
    x = 146,611,549.46/13,525.04
  6. Step 6: Final answer
    x = 10,840.01

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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.