Home / 19,875.04-29,772.74-11,973.15

Finding the Fourth Proportional to 19,875.04, 29,772.74 and 11,973.15

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Solution

The fourth proportional to 19,875.04, 29,772.74 and 11,973.15 is: 17,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.04 : 29,772.74 = 11,973.15 : x
  2. Step 2: Convert to fraction form
    19,875.04/29,772.74 = 11,973.15/x
  3. Step 3: Cross multiply
    19,875.04x = 29,772.74 × 11,973.15
  4. Step 4: Simplify right side
    19,875.04x = 356,473,511.86
  5. Step 5: Solve for x
    x = 356,473,511.86/19,875.04
  6. Step 6: Final answer
    x = 17,935.74

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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.