Home / 15,323.02-21,142.06-8,946

Finding the Fourth Proportional to 15,323.02, 21,142.06 and 8,946

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Solution

The fourth proportional to 15,323.02, 21,142.06 and 8,946 is: 12,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.02 : 21,142.06 = 8,946 : x
  2. Step 2: Convert to fraction form
    15,323.02/21,142.06 = 8,946/x
  3. Step 3: Cross multiply
    15,323.02x = 21,142.06 × 8,946
  4. Step 4: Simplify right side
    15,323.02x = 189,136,868.76
  5. Step 5: Solve for x
    x = 189,136,868.76/15,323.02
  6. Step 6: Final answer
    x = 12,343.32

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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.