Home / 13,904.40-19,182.81-8,868.81

Finding the Fourth Proportional to 13,904.40, 19,182.81 and 8,868.81

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Solution

The fourth proportional to 13,904.40, 19,182.81 and 8,868.81 is: 12,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.40 : 19,182.81 = 8,868.81 : x
  2. Step 2: Convert to fraction form
    13,904.40/19,182.81 = 8,868.81/x
  3. Step 3: Cross multiply
    13,904.40x = 19,182.81 × 8,868.81
  4. Step 4: Simplify right side
    13,904.40x = 170,128,697.16
  5. Step 5: Solve for x
    x = 170,128,697.16/13,904.40
  6. Step 6: Final answer
    x = 12,235.60

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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.