Home / 13,406.87-18,501.27-7,357.16

Finding the Fourth Proportional to 13,406.87, 18,501.27 and 7,357.16

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Solution

The fourth proportional to 13,406.87, 18,501.27 and 7,357.16 is: 10,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.87 : 18,501.27 = 7,357.16 : x
  2. Step 2: Convert to fraction form
    13,406.87/18,501.27 = 7,357.16/x
  3. Step 3: Cross multiply
    13,406.87x = 18,501.27 × 7,357.16
  4. Step 4: Simplify right side
    13,406.87x = 136,116,803.59
  5. Step 5: Solve for x
    x = 136,116,803.59/13,406.87
  6. Step 6: Final answer
    x = 10,152.77

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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.