Home / 14,445.60-19,935.76-8,160.16

Finding the Fourth Proportional to 14,445.60, 19,935.76 and 8,160.16

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Solution

The fourth proportional to 14,445.60, 19,935.76 and 8,160.16 is: 11,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.60 : 19,935.76 = 8,160.16 : x
  2. Step 2: Convert to fraction form
    14,445.60/19,935.76 = 8,160.16/x
  3. Step 3: Cross multiply
    14,445.60x = 19,935.76 × 8,160.16
  4. Step 4: Simplify right side
    14,445.60x = 162,678,991.32
  5. Step 5: Solve for x
    x = 162,678,991.32/14,445.60
  6. Step 6: Final answer
    x = 11,261.49

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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.