Home / 19,164.08-28,746.12-5,312.72

Finding the Fourth Proportional to 19,164.08, 28,746.12 and 5,312.72

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Solution

The fourth proportional to 19,164.08, 28,746.12 and 5,312.72 is: 7,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.08 : 28,746.12 = 5,312.72 : x
  2. Step 2: Convert to fraction form
    19,164.08/28,746.12 = 5,312.72/x
  3. Step 3: Cross multiply
    19,164.08x = 28,746.12 × 5,312.72
  4. Step 4: Simplify right side
    19,164.08x = 152,720,086.65
  5. Step 5: Solve for x
    x = 152,720,086.65/19,164.08
  6. Step 6: Final answer
    x = 7,969.08

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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.