Home / 15,424.86-21,285.02-9,050.80

Finding the Fourth Proportional to 15,424.86, 21,285.02 and 9,050.80

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Solution

The fourth proportional to 15,424.86, 21,285.02 and 9,050.80 is: 12,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.86 : 21,285.02 = 9,050.80 : x
  2. Step 2: Convert to fraction form
    15,424.86/21,285.02 = 9,050.80/x
  3. Step 3: Cross multiply
    15,424.86x = 21,285.02 × 9,050.80
  4. Step 4: Simplify right side
    15,424.86x = 192,646,459.02
  5. Step 5: Solve for x
    x = 192,646,459.02/15,424.86
  6. Step 6: Final answer
    x = 12,489.35

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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.