Home / 12,459.02-18,688.46-4,136.72

Finding the Fourth Proportional to 12,459.02, 18,688.46 and 4,136.72

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Solution

The fourth proportional to 12,459.02, 18,688.46 and 4,136.72 is: 6,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.02 : 18,688.46 = 4,136.72 : x
  2. Step 2: Convert to fraction form
    12,459.02/18,688.46 = 4,136.72/x
  3. Step 3: Cross multiply
    12,459.02x = 18,688.46 × 4,136.72
  4. Step 4: Simplify right side
    12,459.02x = 77,308,812.13
  5. Step 5: Solve for x
    x = 77,308,812.13/12,459.02
  6. Step 6: Final answer
    x = 6,205.05

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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.