Home / 15,230.02-21,018.23-9,260.70

Finding the Fourth Proportional to 15,230.02, 21,018.23 and 9,260.70

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Solution

The fourth proportional to 15,230.02, 21,018.23 and 9,260.70 is: 12,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.02 : 21,018.23 = 9,260.70 : x
  2. Step 2: Convert to fraction form
    15,230.02/21,018.23 = 9,260.70/x
  3. Step 3: Cross multiply
    15,230.02x = 21,018.23 × 9,260.70
  4. Step 4: Simplify right side
    15,230.02x = 194,643,522.56
  5. Step 5: Solve for x
    x = 194,643,522.56/15,230.02
  6. Step 6: Final answer
    x = 12,780.25

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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.