Home / 19,030.75-26,253.67-12,318.53

Finding the Fourth Proportional to 19,030.75, 26,253.67 and 12,318.53

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Solution

The fourth proportional to 19,030.75, 26,253.67 and 12,318.53 is: 16,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,030.75 : 26,253.67 = 12,318.53 : x
  2. Step 2: Convert to fraction form
    19,030.75/26,253.67 = 12,318.53/x
  3. Step 3: Cross multiply
    19,030.75x = 26,253.67 × 12,318.53
  4. Step 4: Simplify right side
    19,030.75x = 323,406,621.51
  5. Step 5: Solve for x
    x = 323,406,621.51/19,030.75
  6. Step 6: Final answer
    x = 16,993.90

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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.