Home / 15,415.02-23,160.57-9,870.78

Finding the Fourth Proportional to 15,415.02, 23,160.57 and 9,870.78

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Solution

The fourth proportional to 15,415.02, 23,160.57 and 9,870.78 is: 14,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.02 : 23,160.57 = 9,870.78 : x
  2. Step 2: Convert to fraction form
    15,415.02/23,160.57 = 9,870.78/x
  3. Step 3: Cross multiply
    15,415.02x = 23,160.57 × 9,870.78
  4. Step 4: Simplify right side
    15,415.02x = 228,612,891.14
  5. Step 5: Solve for x
    x = 228,612,891.14/15,415.02
  6. Step 6: Final answer
    x = 14,830.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.