Home / 15,312.28-21,136.26-9,024.28

Finding the Fourth Proportional to 15,312.28, 21,136.26 and 9,024.28

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Solution

The fourth proportional to 15,312.28, 21,136.26 and 9,024.28 is: 12,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.28 : 21,136.26 = 9,024.28 : x
  2. Step 2: Convert to fraction form
    15,312.28/21,136.26 = 9,024.28/x
  3. Step 3: Cross multiply
    15,312.28x = 21,136.26 × 9,024.28
  4. Step 4: Simplify right side
    15,312.28x = 190,739,528.39
  5. Step 5: Solve for x
    x = 190,739,528.39/15,312.28
  6. Step 6: Final answer
    x = 12,456.64

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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.