Home / 15,421.02-23,169.60-9,876.78

Finding the Fourth Proportional to 15,421.02, 23,169.60 and 9,876.78

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Solution

The fourth proportional to 15,421.02, 23,169.60 and 9,876.78 is: 14,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.02 : 23,169.60 = 9,876.78 : x
  2. Step 2: Convert to fraction form
    15,421.02/23,169.60 = 9,876.78/x
  3. Step 3: Cross multiply
    15,421.02x = 23,169.60 × 9,876.78
  4. Step 4: Simplify right side
    15,421.02x = 228,841,041.89
  5. Step 5: Solve for x
    x = 228,841,041.89/15,421.02
  6. Step 6: Final answer
    x = 14,839.55

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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.