Home / 15,810.48-21,818.90-8,737.36

Finding the Fourth Proportional to 15,810.48, 21,818.90 and 8,737.36

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Solution

The fourth proportional to 15,810.48, 21,818.90 and 8,737.36 is: 12,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.48 : 21,818.90 = 8,737.36 : x
  2. Step 2: Convert to fraction form
    15,810.48/21,818.90 = 8,737.36/x
  3. Step 3: Cross multiply
    15,810.48x = 21,818.90 × 8,737.36
  4. Step 4: Simplify right side
    15,810.48x = 190,639,584.10
  5. Step 5: Solve for x
    x = 190,639,584.10/15,810.48
  6. Step 6: Final answer
    x = 12,057.80

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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.