Home / 12,558.02-18,825.51-5,628.74

Finding the Fourth Proportional to 12,558.02, 18,825.51 and 5,628.74

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Solution

The fourth proportional to 12,558.02, 18,825.51 and 5,628.74 is: 8,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.02 : 18,825.51 = 5,628.74 : x
  2. Step 2: Convert to fraction form
    12,558.02/18,825.51 = 5,628.74/x
  3. Step 3: Cross multiply
    12,558.02x = 18,825.51 × 5,628.74
  4. Step 4: Simplify right side
    12,558.02x = 105,963,901.16
  5. Step 5: Solve for x
    x = 105,963,901.16/12,558.02
  6. Step 6: Final answer
    x = 8,437.95

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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.