Home / 19,109.98-28,671.45-9,869.50

Finding the Fourth Proportional to 19,109.98, 28,671.45 and 9,869.50

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Solution

The fourth proportional to 19,109.98, 28,671.45 and 9,869.50 is: 14,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.98 : 28,671.45 = 9,869.50 : x
  2. Step 2: Convert to fraction form
    19,109.98/28,671.45 = 9,869.50/x
  3. Step 3: Cross multiply
    19,109.98x = 28,671.45 × 9,869.50
  4. Step 4: Simplify right side
    19,109.98x = 282,972,875.78
  5. Step 5: Solve for x
    x = 282,972,875.78/19,109.98
  6. Step 6: Final answer
    x = 14,807.60

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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.