Home / 14,115.02-19,478.40-8,065.53

Finding the Fourth Proportional to 14,115.02, 19,478.40 and 8,065.53

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Solution

The fourth proportional to 14,115.02, 19,478.40 and 8,065.53 is: 11,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.02 : 19,478.40 = 8,065.53 : x
  2. Step 2: Convert to fraction form
    14,115.02/19,478.40 = 8,065.53/x
  3. Step 3: Cross multiply
    14,115.02x = 19,478.40 × 8,065.53
  4. Step 4: Simplify right side
    14,115.02x = 157,103,619.55
  5. Step 5: Solve for x
    x = 157,103,619.55/14,115.02
  6. Step 6: Final answer
    x = 11,130.25

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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.