Home / 14,155.10-19,533.84-7,781.96

Finding the Fourth Proportional to 14,155.10, 19,533.84 and 7,781.96

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Solution

The fourth proportional to 14,155.10, 19,533.84 and 7,781.96 is: 10,739.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.10 : 19,533.84 = 7,781.96 : x
  2. Step 2: Convert to fraction form
    14,155.10/19,533.84 = 7,781.96/x
  3. Step 3: Cross multiply
    14,155.10x = 19,533.84 × 7,781.96
  4. Step 4: Simplify right side
    14,155.10x = 152,011,561.53
  5. Step 5: Solve for x
    x = 152,011,561.53/14,155.10
  6. Step 6: Final answer
    x = 10,739.00

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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.