Home / 15,852.01-21,875.50-8,778.28

Finding the Fourth Proportional to 15,852.01, 21,875.50 and 8,778.28

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Solution

The fourth proportional to 15,852.01, 21,875.50 and 8,778.28 is: 12,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,852.01 : 21,875.50 = 8,778.28 : x
  2. Step 2: Convert to fraction form
    15,852.01/21,875.50 = 8,778.28/x
  3. Step 3: Cross multiply
    15,852.01x = 21,875.50 × 8,778.28
  4. Step 4: Simplify right side
    15,852.01x = 192,029,187.51
  5. Step 5: Solve for x
    x = 192,029,187.51/15,852.01
  6. Step 6: Final answer
    x = 12,113.87

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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.