Home / 15,877.02-21,910.98-8,802.96

Finding the Fourth Proportional to 15,877.02, 21,910.98 and 8,802.96

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Solution

The fourth proportional to 15,877.02, 21,910.98 and 8,802.96 is: 12,148.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.02 : 21,910.98 = 8,802.96 : x
  2. Step 2: Convert to fraction form
    15,877.02/21,910.98 = 8,802.96/x
  3. Step 3: Cross multiply
    15,877.02x = 21,910.98 × 8,802.96
  4. Step 4: Simplify right side
    15,877.02x = 192,881,480.50
  5. Step 5: Solve for x
    x = 192,881,480.50/15,877.02
  6. Step 6: Final answer
    x = 12,148.47

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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.