Home / 14,155.19-19,534.40-7,782.04

Finding the Fourth Proportional to 14,155.19, 19,534.40 and 7,782.04

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Solution

The fourth proportional to 14,155.19, 19,534.40 and 7,782.04 is: 10,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.19 : 19,534.40 = 7,782.04 : x
  2. Step 2: Convert to fraction form
    14,155.19/19,534.40 = 7,782.04/x
  3. Step 3: Cross multiply
    14,155.19x = 19,534.40 × 7,782.04
  4. Step 4: Simplify right side
    14,155.19x = 152,017,467.68
  5. Step 5: Solve for x
    x = 152,017,467.68/14,155.19
  6. Step 6: Final answer
    x = 10,739.35

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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.