Home / 19,009.08-28,515.06-5,159.16

Finding the Fourth Proportional to 19,009.08, 28,515.06 and 5,159.16

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Solution

The fourth proportional to 19,009.08, 28,515.06 and 5,159.16 is: 7,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.08 : 28,515.06 = 5,159.16 : x
  2. Step 2: Convert to fraction form
    19,009.08/28,515.06 = 5,159.16/x
  3. Step 3: Cross multiply
    19,009.08x = 28,515.06 × 5,159.16
  4. Step 4: Simplify right side
    19,009.08x = 147,113,756.95
  5. Step 5: Solve for x
    x = 147,113,756.95/19,009.08
  6. Step 6: Final answer
    x = 7,739.13

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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.