Home / 19,677.12-27,154.40-10,724.80

Finding the Fourth Proportional to 19,677.12, 27,154.40 and 10,724.80

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Solution

The fourth proportional to 19,677.12, 27,154.40 and 10,724.80 is: 14,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,677.12 : 27,154.40 = 10,724.80 : x
  2. Step 2: Convert to fraction form
    19,677.12/27,154.40 = 10,724.80/x
  3. Step 3: Cross multiply
    19,677.12x = 27,154.40 × 10,724.80
  4. Step 4: Simplify right side
    19,677.12x = 291,225,509.12
  5. Step 5: Solve for x
    x = 291,225,509.12/19,677.12
  6. Step 6: Final answer
    x = 14,800.21

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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.