Home / 19,509.07-29,263.61-9,128.11

Finding the Fourth Proportional to 19,509.07, 29,263.61 and 9,128.11

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Solution

The fourth proportional to 19,509.07, 29,263.61 and 9,128.11 is: 13,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,509.07 : 29,263.61 = 9,128.11 : x
  2. Step 2: Convert to fraction form
    19,509.07/29,263.61 = 9,128.11/x
  3. Step 3: Cross multiply
    19,509.07x = 29,263.61 × 9,128.11
  4. Step 4: Simplify right side
    19,509.07x = 267,121,405.44
  5. Step 5: Solve for x
    x = 267,121,405.44/19,509.07
  6. Step 6: Final answer
    x = 13,692.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.