Home / 15,810.48-21,816.12-8,737.20

Finding the Fourth Proportional to 15,810.48, 21,816.12 and 8,737.20

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Solution

The fourth proportional to 15,810.48, 21,816.12 and 8,737.20 is: 12,056.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.48 : 21,816.12 = 8,737.20 : x
  2. Step 2: Convert to fraction form
    15,810.48/21,816.12 = 8,737.20/x
  3. Step 3: Cross multiply
    15,810.48x = 21,816.12 × 8,737.20
  4. Step 4: Simplify right side
    15,810.48x = 190,611,803.66
  5. Step 5: Solve for x
    x = 190,611,803.66/15,810.48
  6. Step 6: Final answer
    x = 12,056.04

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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.