Home / 12,368.80-17,055.21-9,529.84

Finding the Fourth Proportional to 12,368.80, 17,055.21 and 9,529.84

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Solution

The fourth proportional to 12,368.80, 17,055.21 and 9,529.84 is: 13,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.80 : 17,055.21 = 9,529.84 : x
  2. Step 2: Convert to fraction form
    12,368.80/17,055.21 = 9,529.84/x
  3. Step 3: Cross multiply
    12,368.80x = 17,055.21 × 9,529.84
  4. Step 4: Simplify right side
    12,368.80x = 162,533,422.47
  5. Step 5: Solve for x
    x = 162,533,422.47/12,368.80
  6. Step 6: Final answer
    x = 13,140.60

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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.