Home / 15,307.02-21,122.07-8,592.78

Finding the Fourth Proportional to 15,307.02, 21,122.07 and 8,592.78

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Solution

The fourth proportional to 15,307.02, 21,122.07 and 8,592.78 is: 11,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.02 : 21,122.07 = 8,592.78 : x
  2. Step 2: Convert to fraction form
    15,307.02/21,122.07 = 8,592.78/x
  3. Step 3: Cross multiply
    15,307.02x = 21,122.07 × 8,592.78
  4. Step 4: Simplify right side
    15,307.02x = 181,497,300.65
  5. Step 5: Solve for x
    x = 181,497,300.65/15,307.02
  6. Step 6: Final answer
    x = 11,857.13

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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.