Home / 14,122.64-19,492.08-8,155.28

Finding the Fourth Proportional to 14,122.64, 19,492.08 and 8,155.28

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Solution

The fourth proportional to 14,122.64, 19,492.08 and 8,155.28 is: 11,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.64 : 19,492.08 = 8,155.28 : x
  2. Step 2: Convert to fraction form
    14,122.64/19,492.08 = 8,155.28/x
  3. Step 3: Cross multiply
    14,122.64x = 19,492.08 × 8,155.28
  4. Step 4: Simplify right side
    14,122.64x = 158,963,370.18
  5. Step 5: Solve for x
    x = 158,963,370.18/14,122.64
  6. Step 6: Final answer
    x = 11,255.92

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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.